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
Merge branch 'cm-11.0' of github.com:CyanogenMod/android_frameworks_av into cm-11.0
Frameworks/Av: Add SP_ADRENO support for encoder

SP_ADRENO color format support is added for
SW encoder. This format is supported by GPU
natively. Using SP_ADRENO avoids memcpy and
color conversion operations currently performed
in GPU for normal semi planar format and improves
SW encoder performance.

Change-Id: I14a802e1ccf743063f8d2fdcf163e576eac36c29