mxs: Reowork SPL to use 'mxs' prefix for methods

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
diff --git a/board/denx/m28evk/spl_boot.c b/board/denx/m28evk/spl_boot.c
index 7a12592..49e8a75 100644
--- a/board/denx/m28evk/spl_boot.c
+++ b/board/denx/m28evk/spl_boot.c
@@ -218,5 +218,5 @@
 
 void board_init_ll(void)
 {
-	mx28_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));
+	mxs_common_spl_init(iomux_setup, ARRAY_SIZE(iomux_setup));
 }