target: msm8952: add command line support for LE

Target boot params are required to know which file system
should be mounted as rootfs in case of LE builds

Change-Id: I62036242719c8db95f0d7d3f312e2b3f01537d48
diff --git a/project/msm8952.mk b/project/msm8952.mk
index b6f5dd6..b118e8f 100644
--- a/project/msm8952.mk
+++ b/project/msm8952.mk
@@ -103,6 +103,10 @@
 DEFINES += WDOG_SUPPORT=1
 endif
 
+ifeq ($(APPEND_CMDLINE),1)
+DEFINES += _APPEND_CMDLINE=1
+endif
+
 #SCM call before entering DLOAD mode
 DEFINES += PLATFORM_USE_SCM_DLOAD=1