m7-common: camera: clean up wrapper code

* Clean up formatting, warnings, style, etc.

Change-Id: Ie0757befa341e209e2b552b42bffee6b52d8df0a
m7-common: Fix video HDR, clean up camera wrapper code

Change-Id: I803e0b3656c3cc8a484dfa8a754ce9c80ca7c937
Sort out BOOTCLASSPATH

Change-Id: I183abc57daece33be6c389cafbc9eaa517836e7f
m7-common: allow m7spr and m7vzw to use their own radio blobs.

Change-Id: Icad77b0eb5dc13e41e7fab355900a3fb377040e7