msm: rpm-log: fix trivial input checks in rpm_log_file_read
msm: rpm-log: fix trivial input checks in rpm_log_file_read

Modify the Comparison of unsigned value against 0 as it is
always false.

Change-Id: I602c1210bbf1cc2e9a09f97a682d946e325d04c7
Signed-off-by: Anji Jonnala <d32984257c2b1f19a52887b31db69164a662fd03@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas