libril: Add support for ST-Ericsson Thor M7450 modems

The M7450 modem used in the Galaxy Note 4 (N910C variant) uses a libril
implementation similar to the one employed for Intel XMM* modems by Samsung.

This probably needs future adjustments, but so far fixes basic call functions
and signal strength is displayed correctly.

Change-Id: I2d070102ad11746902527da3c2c7f49485c7d7f1
diff --git a/ril/Android.mk b/ril/Android.mk
index 2aa2119..8008ace 100644
--- a/ril/Android.mk
+++ b/ril/Android.mk
@@ -20,7 +20,7 @@
 
 # libril
 ifeq ($(BOARD_PROVIDES_LIBRIL),true)
-ifneq ($(filter xmm6260 xmm6262 xmm6360 xmm7260,$(BOARD_MODEM_TYPE)),)
+ifneq ($(filter xmm6260 xmm6262 xmm6360 xmm7260 m7450,$(BOARD_MODEM_TYPE)),)
 include $(RIL_PATH)/libril/Android.mk
 endif
 endif