Always use named structs in header files

Add tag names to all unnamed structs in header files. This
allows forward declaration of structs, which is necessary to
reduce header file nesting (to be implemented in a subsequent
commit).

Also change the typedef names across the codebase to use the _t
suffix to be more conformant with the Linux coding style. The
coding style actually prefers us not to use typedefs at all but
this is considered a step too far for Trusted Firmware.

Also change the IO framework structs defintions to use typedef'd
structs to be consistent with the rest of the codebase.

Change-Id: I722b2c86fc0d92e4da3b15e5cab20373dd26786f
diff --git a/plat/fvp/aarch64/plat_common.c b/plat/fvp/aarch64/plat_common.c
index 338141c..40e6b32 100644
--- a/plat/fvp/aarch64/plat_common.c
+++ b/plat/fvp/aarch64/plat_common.c
@@ -122,7 +122,7 @@
  * This doesn't include TZRAM as the 'mem_layout' argument passed to to
  * configure_mmu() will give the available subset of that,
  */
-const mmap_region fvp_mmap[] = {
+const mmap_region_t fvp_mmap[] = {
 	{ TZROM_BASE,	TZROM_SIZE,	MT_MEMORY | MT_RO | MT_SECURE },
 	{ TZDRAM_BASE,	TZDRAM_SIZE,	MT_MEMORY | MT_RW | MT_SECURE },
 	{ FLASH0_BASE,	FLASH0_SIZE,	MT_MEMORY | MT_RO | MT_SECURE },
@@ -140,7 +140,7 @@
 /*******************************************************************************
  * Setup the pagetables as per the platform memory map & initialize the mmu
  *******************************************************************************/
-void configure_mmu(meminfo *mem_layout,
+void configure_mmu(meminfo_t *mem_layout,
 		   unsigned long ro_start,
 		   unsigned long ro_limit,
 		   unsigned long coh_start,