msm: Rename msmfalcon to sdm660

Update the code name from msmfalcon to sdm660. As part of this, update
the filename containing "falcon" and files content containing "falcon".

Conflicts:
	configs/sdm660/sdm660.mk

Change-Id: I5fc11ffac2f21f11e2a7283cf7375bcf93c01623
diff --git a/post_proc/Android.mk b/post_proc/Android.mk
index 7e507d9..88d8c1c 100644
--- a/post_proc/Android.mk
+++ b/post_proc/Android.mk
@@ -81,7 +81,7 @@
 
 ################################################################################
 
-ifneq ($(filter msm8992 msm8994 msm8996 msm8998 msmfalcon,$(TARGET_BOARD_PLATFORM)),)
+ifneq ($(filter msm8992 msm8994 msm8996 msm8998 sdm660,$(TARGET_BOARD_PLATFORM)),)
 
 include $(CLEAR_VARS)