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/bl32_plat_setup.c b/plat/fvp/bl32_plat_setup.c
index ba418fd..3226ea2 100644
--- a/plat/fvp/bl32_plat_setup.c
+++ b/plat/fvp/bl32_plat_setup.c
@@ -66,11 +66,11 @@
 #define BL32_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
 
 /* Data structure which holds the extents of the trusted SRAM for BL32 */
-static meminfo bl32_tzdram_layout
+static meminfo_t bl32_tzdram_layout
 __attribute__ ((aligned(PLATFORM_CACHE_LINE_SIZE),
 		section("tzfw_coherent_mem")));
 
-meminfo *bl32_plat_sec_mem_layout(void)
+meminfo_t *bl32_plat_sec_mem_layout(void)
 {
 	return &bl32_tzdram_layout;
 }
@@ -79,7 +79,7 @@
  * BL1 has passed the extents of the trusted SRAM that's at BL32's disposal.
  * Initialize the BL32 data structure with the memory extends
  ******************************************************************************/
-void bl32_early_platform_setup(meminfo *mem_layout,
+void bl32_early_platform_setup(meminfo_t *mem_layout,
 			      void *data)
 {
 	/* Setup the BL32 memory layout */