audio: msm8909w caf release LW.BR.1.0-00410-8x09w.0

MSM8909w Audio HAL code copied from CAF release
LW.BR.1.0-00410-8x09w.0

dbcce503 hal: Port wcd9326 changes to 8909
410c530a hal: update error handling for pcm_prepare failures
ff79309e hal: fix compilation issues with audio FM extention
762d7eb7 policy_hal: add support for fm device loopback
7c418f9f audio_policy: modify few methods to appropriately override base
8b12163c audio: Add support to enable split A2DP
a0559fa4 Revert "Revert "policy_hal: Function prototype correction for custom policy"."

Fixed makefiles to be compatible with PDK without kernel source

Change-Id: I9c6f2139adee62426b877516deeb41d4ed8052b2