audio-kernel: Add support to compile statically on Kona

Add include and source paths to support compilation
of audio drivers into kernel image on Kona.

Change-Id: I41b5ef7e5d20d517193e8295a61035a28692cb32
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>
diff --git a/asoc/codecs/Kbuild b/asoc/codecs/Kbuild
index df86578..e18a40b 100644
--- a/asoc/codecs/Kbuild
+++ b/asoc/codecs/Kbuild
@@ -196,6 +196,8 @@
 ifeq ($(KERNEL_BUILD), 1)
 	obj-y	+= wcd934x/
 	obj-y	+= wcd937x/
+	obj-y	+= wcd938x/
+	obj-y	+= bolero/
 endif
 # Module information used by KBuild framework
 obj-$(CONFIG_WCD9XXX_CODEC_CORE) += wcd_core_dlkm.o