project: msm8909: Enable the feature SCM DLOAD mode

Set PLATFORM_USE_SCM_DLOAD as 1 to make scm calls
to write to the boot misc detect register and also
to disable the watch dog debug during the dload mode.

Change-Id: Ibb66a896045fd6c07fdaadcf1454ee8d3ecdedbf
diff --git a/project/msm8909.mk b/project/msm8909.mk
index afc40f6..3eea90b 100644
--- a/project/msm8909.mk
+++ b/project/msm8909.mk
@@ -65,3 +65,6 @@
 ifeq ($(ENABLE_BOOT_CONFIG_SUPPORT),1)
 DEFINES += BOOT_CONFIG_SUPPORT=1
 endif
+
+#SCM call before entering DLOAD mode
+DEFINES += PLATFORM_USE_SCM_DLOAD=1