Remove platform dependency in CCI-400 driver

* Create cci_init() function in CCI-400 driver to allow platform
  to provide arguments needed by the driver (i.e. base address
  and cluster indices for the ACE slave interfaces).

* Rename cci_(en|dis)able_coherency to
  cci_(en|dis)able_cluster_coherency to make it clear that
  the driver only enables/disables the coherency of CPU
  clusters and not other devices connected to the CCI-400.

* Update FVP port to use new cci_init() function and remove
  unnecessary CCI defintions from platform_def.h. Also rename
  fvp_cci_setup() to fvp_cci_enable() to more clearly
  differentiate between CCI initialization and enabling.

THIS CHANGE REQUIRES PLATFORM PORTS THAT USE THE CCI-400 DRIVER
TO BE UPDATED

Fixes ARM-software/tf-issues#168

Change-Id: I1946a51409b91217b92285b6375082619f607fec
diff --git a/plat/fvp/bl31_fvp_setup.c b/plat/fvp/bl31_fvp_setup.c
index 0693a12..69efc9c 100644
--- a/plat/fvp/bl31_fvp_setup.c
+++ b/plat/fvp/bl31_fvp_setup.c
@@ -230,9 +230,9 @@
  ******************************************************************************/
 void bl31_plat_arch_setup(void)
 {
+	fvp_cci_init();
 #if RESET_TO_BL31
-	fvp_cci_setup();
-
+	fvp_cci_enable();
 #endif
 	fvp_configure_mmu_el3(BL31_RO_BASE,
 			      (BL31_COHERENT_RAM_LIMIT - BL31_RO_BASE),