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/docs/porting-guide.md b/docs/porting-guide.md
index 7b2e7d2..b4253e6 100644
--- a/docs/porting-guide.md
+++ b/docs/porting-guide.md
@@ -177,7 +177,7 @@
 
 The following mandatory modifications may be implemented in any file
 the implementer chooses. In the ARM FVP port, they are implemented in
-[../plat/fvp/aarch64/fvp_common.c].
+[../plat/fvp/aarch64/plat_common.c].
 
 *   **Variable : unsigned char platform_normal_stacks[X][Y]**
 
@@ -836,7 +836,7 @@
 the passed pointer with a pointer to BL3-1's private `plat_pm_ops` structure.
 
 A description of each member of this structure is given below. Please refer to
-the ARM FVP specific implementation of these handlers in [../plat/fvp/fvp_pm.c]
+the ARM FVP specific implementation of these handlers in [../plat/fvp/plat_pm.c]
 as an example. A platform port may choose not implement some of the power
 management operations. For example, the ARM FVP port does not implement the
 `affinst_standby()` function.
@@ -991,6 +991,6 @@
 
 [../plat/common/aarch64/platform_helpers.S]: ../plat/common/aarch64/platform_helpers.S
 [../plat/fvp/platform.h]:                    ../plat/fvp/platform.h
-[../plat/fvp/aarch64/fvp_common.c]:          ../plat/fvp/aarch64/fvp_common.c
-[../plat/fvp/fvp_pm.c]:                      ../plat/fvp/fvp_pm.c
+[../plat/fvp/aarch64/plat_common.c]:          ../plat/fvp/aarch64/plat_common.c
+[../plat/fvp/plat_pm.c]:                      ../plat/fvp/plat_pm.c
 [../include/runtime_svc.h]:                  ../include/runtime_svc.h