board_f: Drop return value from initdram()

At present we cannot use this function as an init sequence call without a
wrapper, since it returns the RAM size. Adjust it to set the RAM size in
global_data instead, and return 0 on success.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/board/freescale/ls1046aqds/ddr.c b/board/freescale/ls1046aqds/ddr.c
index 6a5cbbf..481ed44 100644
--- a/board/freescale/ls1046aqds/ddr.c
+++ b/board/freescale/ls1046aqds/ddr.c
@@ -92,7 +92,7 @@
 	popts->cpo_sample = 0x70;
 }
 
-phys_size_t initdram(void)
+int initdram(void)
 {
 	phys_size_t dram_size;
 
@@ -110,5 +110,7 @@
 
 	erratum_a008850_post();
 
-	return dram_size;
+	gd->ram_size = dram_size;
+
+	return 0;
 }
diff --git a/board/freescale/ls1046aqds/ls1046aqds.c b/board/freescale/ls1046aqds/ls1046aqds.c
index f30dd23..6238852 100644
--- a/board/freescale/ls1046aqds/ls1046aqds.c
+++ b/board/freescale/ls1046aqds/ls1046aqds.c
@@ -149,7 +149,7 @@
 	 * before accessing DDR SPD.
 	 */
 	select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
-	gd->ram_size = initdram();
+	initdram();
 #if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
 	/* This will break-before-make MMU for DDR */
 	update_early_mmu_table();