qcacmn: ftm: Replace explicit comparison to NULL

Per the Linux Kernel coding style, as enforced by the kernel
checkpatch script, pointers should not be explicitly compared to
NULL. Therefore within ftm replace any such comparisons with logical
operations performed on the pointer itself.

Change-Id: I0b089f46e99ab72a9ae494267a32e8b342a08ae3
CRs-Fixed: 2418259
1 file changed