target: 8952: Fix SPI code compatibility with non-spi targets

Add DISPLAY_TYPE_SPI_SUPPORT flag which can be used to avoid
compilation error in targets which doesn't use SPI display.

Signed-off-by: Althaf Neelanchirayil <aneelanc@codeaurora.org>
Change-Id: I3e29a456ff60c08fa2ede9eaa69b8223852882e1
diff --git a/target/msm8952/rules.mk b/target/msm8952/rules.mk
index ccc7e92..97408f9 100644
--- a/target/msm8952/rules.mk
+++ b/target/msm8952/rules.mk
@@ -20,6 +20,7 @@
 
 DEFINES += DISPLAY_TYPE_MIPI=1
 DEFINES += DISPLAY_TYPE_DSI6G=1
+DEFINES += DISPLAY_TYPE_SPI_SUPPORT=1
 
 DEFINES += PMI_CONFIGURED=1