mx28evk: Convert to mxs_adjust_memory_params()

Recent conversion from mx28_adjust_memory_params to mxs_adjust_memory_params
missed to update mx28evk, which caused the board not to boot.

Apply the conversion so that the board can boot again.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>

board/freescale/mx28evk/iomux.c

@@ -173,7 +173,7 @@ const iomux_cfg_t iomux_setup[] = {
 #define HW_DRAM_CTL29_CONFIG	(CS_MAP << 24 | COLUMN_SIZE << 16 | \
 					ADDR_PINS << 8 | APREBIT)
 
-void mx28_adjust_memory_params(uint32_t *dram_vals)
+void mxs_adjust_memory_params(uint32_t *dram_vals)
 {
 	dram_vals[HW_DRAM_CTL29] = HW_DRAM_CTL29_CONFIG;
 }