[platform]: Add code to enable display initialization only in fastboot mode.

Add code for all targets to enable display only in fastboot mode.
Enable FB-debugging for qsd8k surf to see messages in fastboot mode.
diff --git a/project/qsd8250_surf.mk b/project/qsd8250_surf.mk
index 3b680d1..4e69b22 100644
--- a/project/qsd8250_surf.mk
+++ b/project/qsd8250_surf.mk
@@ -8,4 +8,4 @@
 
 #DEFINES += WITH_DEBUG_DCC=1
 #DEFINES += WITH_DEBUG_UART=1
-#DEFINES += WITH_DEBUG_FBCON=1
+DEFINES += WITH_DEBUG_FBCON=1