recipes: set S to fix the QA warning

Fix the warning by pointing S to ${WORKDIR}/sources and UNPACKDIR to ${S}. Since recent UNPACKDIR work, default S directory is not created anymore. By setting UNPACKDIR to S, S in indirectly created in do_unpack.

Signed-off-by: alperak <alperyasinak1@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/android-tools/android-tools-conf_1.0.bb

@@ -5,6 +5,9 @@ LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda
 
 SRC_URI = "file://android-gadget-setup"
 
+S = "${WORKDIR}/sources"
+UNPACKDIR = "${S}"
+
 PACKAGE_ARCH = "${MACHINE_ARCH}"
 
 do_install() {