Rework memory information passing to BL3-x images

The issues addressed in this patch are:

1. Remove meminfo_t from the common interfaces in BL3-x,
expecting that platform code will find a suitable mechanism
to determine the memory extents in these images and provide
it to the BL3-x images.

2. Remove meminfo_t and bl31_plat_params_t from all FVP BL3-x
code as the images use link-time information to determine
memory extents.

meminfo_t is still used by common interface in BL1/BL2 for
loading images

Change-Id: I4e825ebf6f515b59d84dc2bdddf6edbf15e2d60f
diff --git a/plat/fvp/bl1_plat_setup.c b/plat/fvp/bl1_plat_setup.c
index ac3b69a..76d6963 100644
--- a/plat/fvp/bl1_plat_setup.c
+++ b/plat/fvp/bl1_plat_setup.c
@@ -138,7 +138,8 @@
 		cci_enable_coherency(read_mpidr());
 	}
 
-	configure_mmu_el3(&bl1_tzram_layout,
+	configure_mmu_el3(bl1_tzram_layout.total_base,
+			  bl1_tzram_layout.total_size,
 			  TZROM_BASE,
 			  TZROM_BASE + TZROM_SIZE,
 			  BL1_COHERENT_RAM_BASE,