asoc: update kernel version for kona

Update kernel version for kona.

Change-Id: I490832f0a62f8f1b5cfe6fc6134e22cc5d8ae583
Signed-off-by: Meng Wang <mengw@codeaurora.org>

asoc/codecs/wcd934x/Kbuild

@@ -11,7 +11,7 @@ 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 := $(shell pwd)/kernel/msm-4.9
+	AUDIO_BLD_DIR := $(shell pwd)/kernel/msm-4.19
 	AUDIO_ROOT := $(AUDIO_BLD_DIR)/techpack/audio
 endif