linux: ltp: Add debug output (set -x)

Change-Id: I9d7a88d238aca1bd9c5c2c093c109148e59bd33c
Signed-off-by: Dan Rue <dan.rue@linaro.org>
diff --git a/automated/linux/ltp/ltp.sh b/automated/linux/ltp/ltp.sh
index 309e171..103bc09 100755
--- a/automated/linux/ltp/ltp.sh
+++ b/automated/linux/ltp/ltp.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -x
+
 # shellcheck disable=SC1091
 . ../../lib/sh-test-lib
 OUTPUT="$(pwd)/output"