Add option to use vendor version of mesa

bug: 70165141
Test: Local build

Change-Id: I7f9de1b818cbeb474020424b79a7128a40c779a6
Signed-off-by: Harish Krupo <harish.krupo.kps@intel.com>
Signed-off-by: Yong Yao <yong.yao@intel.com>
(cherry picked from commit 980ddb1b9b6ac19a66f431a6cff3bc469fa2e3b9)
diff --git a/Android.mk b/Android.mk
index ffa6a8f..be51228 100644
--- a/Android.mk
+++ b/Android.mk
@@ -29,6 +29,7 @@
 # The main target is libGLES_mesa.  For each classic driver enabled, a DRI
 # module will also be built.  DRI modules will be loaded by libGLES_mesa.
 
+ifneq ($(BOARD_USE_CUSTOMIZED_MESA), true)
 MESA_TOP := $(call my-dir)
 
 MESA_ANDROID_MAJOR_VERSION := $(word 1, $(subst ., , $(PLATFORM_VERSION)))
@@ -99,3 +100,4 @@
 include $(INC_DIRS)
 
 endif
+endif