lib: fdtdec: Rename routine fdtdec_setup_memory_size()

This patch renames the routine fdtdec_setup_memory_size()
to fdtdec_setup_mem_size_base() as it now fills the
mem base as well along with size.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

diff --git a/board/broadcom/bcmstb/bcmstb.c b/board/broadcom/bcmstb/bcmstb.c
index 25cd354..5632846 100644
--- a/board/broadcom/bcmstb/bcmstb.c
+++ b/board/broadcom/bcmstb/bcmstb.c
@@ -48,7 +48,7 @@
 
 int dram_init(void)
 {
-	if (fdtdec_setup_memory_size() != 0)
+	if (fdtdec_setup_mem_size_base() != 0)
 		return -EINVAL;
 
 	return 0;