soc: qcom: hab: make LA compilation pass

Due to GCC problem
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119

),
it cause a warning in hab test code, this patch is a workaround
to avoid this warning. This can be reverted once the GCC issue is fixed.

Change-Id: I4d01920ef36cb42bae4dd9f331c518a38dfd9a5a
Signed-off-by: Chao Bi <chaobi@codeaurora.org>