camera: Add missing QCOM_HARDWARE #ifdefs

http://review.cyanogenmod.com/#/c/18206/2 was
missing a few QCOM_HARDWARE #ifdefs even though its origin
was CAF.  So far, 18206 has only had positive effects on
certain QCOM devices, and is a noop or breaks things on
non-QCOM.

Per discussion with arcee - #ifdef the rest as QCOM

Change-Id: I46684ef5e6c580137104ad81b4faf58858bbfdd3