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

dbcce50 hal: Port wcd9326 changes to 8909
410c530 hal: update error handling for pcm_prepare failures
ff79309 hal: fix compilation issues with audio FM extention
762d7eb policy_hal: add support for fm device loopback
7c418f9 audio_policy: modify few methods to appropriately override base
8b12163 audio: Add support to enable split A2DP
a0559fa Revert "Revert "policy_hal: Function prototype correction for custom policy"."

Fixed makefiles to be compatible with PDK without kernel source

Change-Id: I9c6f2139adee62426b877516deeb41d4ed8052b2
diff --git a/Android.mk b/Android.mk
index 1aec7cb..f856e9e 100644
--- a/Android.mk
+++ b/Android.mk
@@ -12,5 +12,11 @@
       include $(MY_LOCAL_PATH)/visualizer/Android.mk
       include $(MY_LOCAL_PATH)/post_proc/Android.mk
     endif
+  else
+    ifneq ($(filter msm8909 ,$(TARGET_BOARD_PLATFORM)),)
+      #For msm8909 target
+      include $(call all-named-subdir-makefiles,msm8909)
+    endif
+
   endif
 endif