arm: add arm gcc 7.3.1 native support

Add native gcc version 7.3.1 to support build
of boot-firmware.

Change-Id: I0c64c6217f88e667f24155e1a587badfcc097917
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>

arm/recipes-devtools/gcc-arm-none-eabi-native_7.3.1/gcc-arm-none-eabi-native_7.3.1.bb

@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: MIT
+#
+# Copyright (c) 2019 Arm Limited
+#
+
+# Recipe for fetching and installing the prebuilt gcc-arm toolchain for
+# bare-metal targets.
+# Recipe based on the meta-ti layer:
+# http://git.yoctoproject.org/cgit/cgit.cgi/meta-ti/tree/recipes-ti/devtools/gcc-arm-none-eabi-native_4.9.2015q3.bb?h=master
+#
+# Whilst most of the tools built in relies on the linaro-provided
+# toolchain, some recipes require the baremetal Arm GCC toolchain. The baremetal
+# Arm GCC toolchain is distributed as precompiled binaries. This recipe fetches
+# the toolchain and installs it in sysroot.
+# Recipes may then 'DEPENDS' on this recipe to fetch the toolchain, making the
+# toolchain available in the staging directory of the depending recipe.
+
+GCC_ARM_VERSION = "gcc-arm-none-eabi-7-2018-q2-update"
+LICENSE="GPLv3"
+LIC_FILES_CHKSUM = "file://share/doc/gcc-arm-none-eabi/license.txt;md5=f77466c63f5787f4bd669c402aabe061"
+
+inherit native
+
+SRC_URI = "https://developer.arm.com/-/media/Files/downloads/gnu-rm/7-2018q2/${GCC_ARM_VERSION}-linux.tar.bz2;name=tc32"
+SRC_URI[tc32.md5sum] = "299ebd3f1c2c90930d28ab82e5d8d6c0"
+
+S = "${WORKDIR}/${GCC_ARM_VERSION}"
+
+do_install() {
+    install -d ${D}${INSTALL_GCC_ARM_NONE_EABI}
+    cp -r ${S}/. ${D}${INSTALL_GCC_ARM_NONE_EABI}
+}
+
+FILES_${PN} = "${INSTALL_GCC_ARM_NONE_EABI}/"
+
+INSANE_SKIP_${PN} = "already-stripped"