selftests: ir: skip when non-root user runs the test

Skip instead of fail when non-root user runs the test.
Signed-off-by: Shuah Khan <shuah@kernel.org>
Acked-by: Sean Young <sean@mess.org>
Signed-off-by: Shuah Khan <shuah@kernel.org>

tools/testing/selftests/ir/ir_loopback.sh

@@ -4,6 +4,11 @@
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
 
+if [ $UID != 0 ]; then
+	echo "Please run ir_loopback test as root [SKIP]"
+	exit $ksft_skip
+fi
+
 if ! /sbin/modprobe -q -n rc-loopback; then
         echo "ir_loopback: module rc-loopback is not found [SKIP]"
         exit $ksft_skip