target: msm8909: Define display specific configurations in makefile.

Change to define display specific configurations in makefile,
instead of target rules. This is required as project specific rules,
are dependent on target specific rules, but not included in that
order.

Change-Id: I4d1ed50ab19749c87ddcc8e4d7fdc8345d4b67e7
diff --git a/project/msm8909.mk b/project/msm8909.mk
index f7525f9..07815f2 100644
--- a/project/msm8909.mk
+++ b/project/msm8909.mk
@@ -14,6 +14,11 @@
 
 EMMC_BOOT := 1
 
+ifeq ($(ENABLE_DISPLAY),1)
+DEFINES += ENABLE_DISPLAY=1
+DEFINES += DISPLAY_SPLASH_SCREEN=1
+endif
+
 ifeq ($(VERIFIED_BOOT),1)
 ENABLE_SECAPP_LOADER := 1
 ENABLE_RPMB_SUPPORT := 1