audio: Fix compilation issue

Add audio-driver headers files path to search
directory list during compilation process.

Change-Id: Ie7c5b50a7bcdfb62af33f83dec64936c6b53cabf
diff --git a/hal/Makefile.am b/hal/Makefile.am
index 95224d0..46882f1 100644
--- a/hal/Makefile.am
+++ b/hal/Makefile.am
@@ -4,6 +4,7 @@
         -I $(top_srcdir)/hal \
         -I $(top_srcdir)/hal/audio_extn \
         -I $(top_srcdir)/hal/voice_extn \
+        -I $(PKG_CONFIG_SYSROOT_DIR)/usr/include/audio-kernel \
         -I $(top_srcdir)/hal/${TARGET_PLATFORM}
 
 c_sources = audio_hw.c \
diff --git a/mm-audio/aenc-aac/qdsp6/Makefile.am b/mm-audio/aenc-aac/qdsp6/Makefile.am
index 08c9bee..67f0bf1 100644
--- a/mm-audio/aenc-aac/qdsp6/Makefile.am
+++ b/mm-audio/aenc-aac/qdsp6/Makefile.am
@@ -17,6 +17,7 @@
 AM_CPPFLAGS += -DNDEBUG
 AM_CPPFLAGS += -Iinc
 AM_CPPFLAGS += -I ${WORKSPACE}/hardware/qcom/media/mm-core/inc/
+AM_CPPFLAGS += -I $(PKG_CONFIG_SYSROOT_DIR)/usr/include/audio-kernel
 
 c_sources =src/omx_aac_aenc.cpp
 c_sources +=src/aenc_svr.c
diff --git a/mm-audio/aenc-amrnb/qdsp6/Makefile.am b/mm-audio/aenc-amrnb/qdsp6/Makefile.am
index 8becd07..1b7ed7c 100644
--- a/mm-audio/aenc-amrnb/qdsp6/Makefile.am
+++ b/mm-audio/aenc-amrnb/qdsp6/Makefile.am
@@ -17,6 +17,7 @@
 AM_CPPFLAGS += -DFEATURE_NATIVELINUX -Dstrlcpy=g_strlcpy
 AM_CPPFLAGS += -DFEATURE_DSM_DUP_ITEMS
 AM_CPPFLAGS += -I ${WORKSPACE}/hardware/qcom/media/mm-core/inc/
+AM_CPPFLAGS += -I $(PKG_CONFIG_SYSROOT_DIR)/usr/include/audio-kernel
 
 AM_CPPFLAGS += -g
 AM_CPPFLAGS += -DNDEBUG
diff --git a/mm-audio/aenc-g711/qdsp6/Makefile.am b/mm-audio/aenc-g711/qdsp6/Makefile.am
index 02b0d57..9f42449 100644
--- a/mm-audio/aenc-g711/qdsp6/Makefile.am
+++ b/mm-audio/aenc-g711/qdsp6/Makefile.am
@@ -11,6 +11,7 @@
             -DNDEBUG \
             -DAUDIOV2 \
             -I inc \
+            -I $(PKG_CONFIG_SYSROOT_DIR)/usr/include/audio-kernel \
             -I ${WORKSPACE}/hardware/qcom/media/mm-core/inc/
 
 C_SOURCES = src/aenc_svr.c \
diff --git a/post_proc/Makefile.am b/post_proc/Makefile.am
index e161f8d..54602a2 100644
--- a/post_proc/Makefile.am
+++ b/post_proc/Makefile.am
@@ -1,4 +1,5 @@
 AM_CFLAGS = -I ${WORKSPACE}/external/tinyalsa/include \
+            -I $(PKG_CONFIG_SYSROOT_DIR)/usr/include/audio-kernel \
             -I ${WORKSPACE}/system/media/audio_effects/include
 
 c_sources = bundle.c \