blue: get reboot reason from cmdline

Change-Id: Ib811cd6283f6a9d77f98444f762a2976a389d886
blue: Use legacy CAF input buffersize logic for audio

Older CAF audio HALs only used getInputBufferSize for 5.1 audio,
and our CAF tag is such a HAL.  Use the legacy logic to permit
audio recording to work.

Change-Id: I9e186ec9c8f7e2c9048d846b878831478a7864ff
Merge branch 'cm-10.1' of https://github.com/CyanogenMod/android_device_sony_blue-common into jb-mr1