android-u: disable audio drivers for headless boot

Change-Id: I4dddf6eb4a08b2e43c4445cc380eb2931fff1ea7
Signed-off-by: Roshan Dsouza <[email protected]>

audio_kernel_vendor_board.mk

@@ -1,4 +1,5 @@
 AUDIO_DLKM_ENABLE := false
+ifneq ($(TARGET_DISABLE_AUDIO_DLKM), true)
 ifeq ($(TARGET_KERNEL_DLKM_DISABLE), true)
   ifeq ($(TARGET_KERNEL_DLKM_AUDIO_OVERRIDE),true)
     AUDIO_DLKM_ENABLE := true
@@ -6,6 +7,7 @@ ifeq ($(TARGET_KERNEL_DLKM_DISABLE), true)
 else
   AUDIO_DLKM_ENABLE := true
 endif
+endif # TARGET_DISABLE_AUDIO_DLKM
 
 ifeq ($(AUDIO_DLKM_ENABLE), true)
   include vendor/qcom/opensource/audio-kernel/audio_kernel_modules.mk