build: directory customization [1/3]

PD#SWPL-72631

Problem:
common, build and common_drivers directories are not under the same directory

Solution:
common, build and common_drivers directories customization

Verify:
s4d and C2 AF400

Change-Id: I8e29737a0a791d58454691e922dda949098595bb
Signed-off-by: wanwei.jiang <wanwei.jiang@amlogic.com>
diff --git a/header_include.mk b/header_include.mk
index 048de56..eba023b 100644
--- a/header_include.mk
+++ b/header_include.mk
@@ -1,7 +1,7 @@
 USERINCLUDE 	+= \
-		 -I$(srctree)/../common_drivers/include \
-		 -I$(srctree)/../common_drivers/include/uapi
+		 -I$(srctree)/$(COMMON_DRIVERS_DIR)/include \
+		 -I$(srctree)/$(COMMON_DRIVERS_DIR)/include/uapi
 
 LINUXINCLUDE	+= \
-		 -I$(srctree)/../common_drivers/include \
-		 -I$(srctree)/../common_drivers/include/uapi
+		 -I$(srctree)/$(COMMON_DRIVERS_DIR)/include \
+		 -I$(srctree)/$(COMMON_DRIVERS_DIR)/include/uapi