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/Android.mk b/Android.mk
index 5163d9e..61bb1d5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,4 +1,4 @@
-ifneq ($(filter mpq8092 msm8960 msm8226 msm8x26 msm8610 msm8974 msm8x74 apq8084 msm8916 msm8994 msm8992 msm8909 msm8996 msm8952 msm8937 thorium msm8953 msmgold msm8998 msmfalcon,$(TARGET_BOARD_PLATFORM)),)
+ifneq ($(filter mpq8092 msm8960 msm8226 msm8x26 msm8610 msm8974 msm8x74 apq8084 msm8916 msm8994 msm8992 msm8909 msm8996 msm8952 msm8937 thorium msm8953 msmgold msm8998 sdm660,$(TARGET_BOARD_PLATFORM)),)
 
 MY_LOCAL_PATH := $(call my-dir)