gccmakedep: fix buildpaths qa check

When enable "buildpaths" QA check, it fails to build gccmakedep:

| ERROR: QA Issue: File
| work/mips64-poky-linux/gccmakedep/1_1.0.3-r3/packages-split/gccmakedep/usr/bin/gccmakedep
| in package contained reference to tmpdir [buildpaths]

Remove build related path to fix this issue.

(From OE-Core rev: 9f3e6d811d9a360dc41031838431edcd2e226f3d)

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-graphics/xorg-util/gccmakedep_1.0.3.bb

@@ -14,4 +14,8 @@ PR = "r3"
 PE = "1"
 
 SRC_URI[md5sum] = "127ddb6131eb4a56fdf6644a63ade788"
-SRC_URI[sha256sum] = "f9e2e7a590e27f84b6708ab7a81e546399b949bf652fb9b95193e0e543e6a548"
+SRC_URI[sha256sum] = "f9e2e7a590e27f84b6708ab7a81e546399b949bf652fb9b95193e0e543e6a548"
+
+do_install_append() {
+	sed -i "s,--sysroot=${STAGING_DIR_TARGET},," ${D}${bindir}/gccmakedep
+}