qcacmn: Check for null resume handlers in suspend recovery

After an error, during the suspend process, previously suspended
components are resumed in reverse order. However, while the suspend case
checks for null handlers before dispatching them, the recovery case does
not. Ensure each resume handler is not null before calling it during
suspend recovery.

Change-Id: I86baa4cba9d2b64871da58427a4657b4b3642cdc
CRs-Fixed: 2057165
1 file changed