fvp: rename fvp_* files to plat_*

The FVP platform has a few filenames that begin with fvp_.  These are
renamed to plat_ to make it easier to use the FVP port as a template.

Change-Id: I601e6256d5ef3bae81a2e1f5df6de56db5b27069
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
diff --git a/plat/fvp/platform.mk b/plat/fvp/platform.mk
index 1765801..5da2acd 100644
--- a/plat/fvp/platform.mk
+++ b/plat/fvp/platform.mk
@@ -62,20 +62,20 @@
 
 BL1_OBJS		+=	bl1_plat_setup.o			\
 				bl1_plat_helpers.o			\
-				fvp_helpers.o				\
-				fvp_common.o				\
+				plat_helpers.o				\
+				plat_common.o				\
 				cci400.o
 
 BL2_OBJS		+=	bl2_plat_setup.o			\
-				fvp_common.o
+				plat_common.o
 
 BL31_OBJS		+=	bl31_plat_setup.o			\
-				fvp_helpers.o				\
-				fvp_common.o				\
-				fvp_pm.o				\
+				plat_helpers.o				\
+				plat_common.o				\
+				plat_pm.o				\
+				plat_topology.o				\
+				plat_gic.o				\
 				fvp_pwrc.o				\
-				fvp_topology.o				\
-				fvp_gic.o				\
 				cci400.o				\
 				gic_v2.o				\
 				gic_v3.o