android-tools-conf-configs: revert deletion of the recipe

The commit 33c1e33d23 ("android-tools: remove android-tools 5.x from
meta-oe/recipes-devtools") blindly dropped all recipes from the
android-tools dir. Later commits moved the android-tools recipe and
other related recipes from the SELinux dynamic layer, bumping the
version to 29.x, but somehow the author of the patches didn't notice
that the resulting set of packages doesn't work out of box on any
upstream kernels, as the default android-tools-conf setup scripts use
Android-proprietary way of setting up the USB gadget
(/sys/class/android_usb).

Bring back the android-tools-conf-configs recipe, which uses upstream
mechanism (ConfigFS) to setup the USB gadget for ADB.

Fixes: 33c1e33d23 ("android-tools: remove android-tools 5.x from meta-oe/recipes-devtools")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-oe/recipes-devtools/android-tools/android-tools-conf-configfs/10-adbd-configfs.conf

@@ -0,0 +1,4 @@
+[Service]
+ExecStartPre=/usr/bin/android-gadget-setup
+ExecStartPost=/usr/bin/android-gadget-start
+ExecStopPost=/usr/bin/android-gadget-cleanup

meta-oe/recipes-devtools/android-tools/android-tools-conf-configfs/android-gadget-cleanup

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+[ -d /sys/kernel/config/usb_gadget ] || exit 0
+
+cd /sys/kernel/config/usb_gadget
+
+cd adb
+
+echo -n "" > UDC || true
+
+killall adbd || true
+
+umount /dev/usb-ffs/adb
+
+rm configs/c.1/ffs.usb0
+
+rmdir configs/c.1/strings/0x409
+rmdir configs/c.1
+
+rmdir functions/ffs.usb0
+rmdir strings/0x409
+
+cd ..
+rmdir adb

meta-oe/recipes-devtools/android-tools/android-tools-conf-configfs/android-gadget-setup

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+set -e
+
+conf="Conf 1"
+manufacturer=RPB
+model="Android device"
+product=0xd002
+serial=0123456789ABCDEF
+vendor=0x18d1
+
+if [ -r /etc/android-gadget-setup.machine ] ; then
+	. /etc/android-gadget-setup.machine
+fi
+
+[ -d /sys/kernel/config/usb_gadget ] || modprobe libcomposite
+
+cd /sys/kernel/config/usb_gadget
+
+[ -d adb ] && /usr/bin/android-gadget-cleanup || true
+
+mkdir adb
+cd adb
+
+mkdir configs/c.1
+mkdir functions/ffs.usb0
+mkdir strings/0x409
+mkdir configs/c.1/strings/0x409
+echo -n "$vendor"  > idVendor
+echo -n "$product" > idProduct
+echo "$serial" > strings/0x409/serialnumber
+echo "$manufacturer" > strings/0x409/manufacturer
+echo "$model" > strings/0x409/product
+echo "$conf" > configs/c.1/strings/0x409/configuration
+ln -s functions/ffs.usb0 configs/c.1
+
+mkdir -p /dev/usb-ffs/adb
+mount -t functionfs usb0 /dev/usb-ffs/adb

meta-oe/recipes-devtools/android-tools/android-tools-conf-configfs/android-gadget-start

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+sleep 10
+
+ls /sys/class/udc/ | head -n 1 | xargs echo -n > /sys/kernel/config/usb_gadget/adb/UDC
+
+echo "Setting UDC $(ls /sys/class/udc/ | head -n 1) for USB ADB Gadget usage"

meta-oe/recipes-devtools/android-tools/android-tools-conf-configfs_1.0.bb

@@ -0,0 +1,38 @@
+DESCRIPTION = "Different utilities from Android - corressponding configuration files for using ConfigFS"
+SECTION = "console/utils"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
+
+S = "${UNPACKDIR}"
+
+SRC_URI = " \
+    file://android-gadget-setup \
+    file://android-gadget-start \
+    file://android-gadget-cleanup \
+    file://10-adbd-configfs.conf \
+"
+
+PACKAGE_ARCH = "${MACHINE_ARCH}"
+
+do_install() {
+    install -d ${D}${bindir}
+    install -m 0755 ${UNPACKDIR}/android-gadget-setup ${D}${bindir}
+    install -m 0755 ${UNPACKDIR}/android-gadget-start ${D}${bindir}
+    install -m 0755 ${UNPACKDIR}/android-gadget-cleanup ${D}${bindir}
+
+    if [ -r ${UNPACKDIR}/android-gadget-setup.machine ] ; then
+	install -d ${D}${sysconfdir}
+	install -m 0644 ${UNPACKDIR}/android-gadget-setup.machine ${D}${sysconfdir}
+    fi
+
+    install -d ${D}${systemd_unitdir}/system/android-tools-adbd.service.d
+    install -m 0644 ${UNPACKDIR}/10-adbd-configfs.conf ${D}${systemd_unitdir}/system/android-tools-adbd.service.d
+}
+
+FILES:${PN} += " \
+    ${systemd_unitdir}/system/ \
+"
+
+PROVIDES += "android-tools-conf"
+RPROVIDES:${PN} = "android-tools-conf"
+BBCLASSEXTEND = "native"