ASoC: Add support for audio drivers compilation on kernel-4.14

Add support for audio drivers compilation on kernel-4.14.

Change-Id: Id7689cef4ae7cdb6711fed386d2a6b0d427b3fc3
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>

soc/Kbuild

@@ -9,7 +9,7 @@ endif
 ifeq ($(KERNEL_BUILD), 1)
 	# These are configurable via Kconfig for kernel-based builds
 	# Need to explicitly configure for Android-based builds
-	AUDIO_BLD_DIR := $(ANDROID_BUILD_TOP)/kernel/msm-4.9
+	AUDIO_BLD_DIR := $(ANDROID_BUILD_TOP)/kernel/msm-4.14
 	AUDIO_ROOT := $(AUDIO_BLD_DIR)/techpack/audio
 endif