libnbaio: Don't call get_presentation_position for pre KitKat blobs

This fixes a crash with the HTC Tegra3 audio blob where
mStream->get_presentation_position is not NULL but pointing to a unknown
position in memory.

Change-Id: I0ff0ab064c1ac16a128bb3f24d4a473b3164f36d
Fix up CameraClient.cpp for compilation

Change-Id: Ied3e6e9d5e73d63ae3c19b3afb09c0ce5a5e4768
Merge branch 'cm-11.0' of github.com:legaCyMod/android_frameworks_av into cm-11.0
Merge branch 'cm-11.0' of github.com:vineethraj49/android_frameworks_av into cm-11.0