arm/libts: use UNPACKDIR

Single files in SRC_URI are now in UNPACKDIR not WORKDIR.

Signed-off-by: Ross Burton <ross.burton@arm.com>

meta-arm/recipes-security/trusted-services/libts_git.bb

@@ -19,7 +19,7 @@ TEE_GROUP_NAME ?= "teeclnt"
 do_install:append () {
     if ${@oe.utils.conditional('VIRTUAL-RUNTIME_dev_manager', 'busybox-mdev', 'false', 'true', d)}; then
         install -d ${D}${nonarch_base_libdir}/udev/rules.d/
-        install -m 755 ${WORKDIR}/tee-udev.rules ${D}${nonarch_base_libdir}/udev/rules.d/
+        install -m 755 ${UNPACKDIR}/tee-udev.rules ${D}${nonarch_base_libdir}/udev/rules.d/
         sed -i -e "s/teeclnt/${TEE_GROUP_NAME}/" ${D}${nonarch_base_libdir}/udev/rules.d/tee-udev.rules
     fi