mxs: prefix register structs with 'mxs' prefix

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
diff --git a/board/freescale/mx28evk/mx28evk.c b/board/freescale/mx28evk/mx28evk.c
index 1bc83e9..1320277 100644
--- a/board/freescale/mx28evk/mx28evk.c
+++ b/board/freescale/mx28evk/mx28evk.c
@@ -115,8 +115,8 @@
 
 int board_eth_init(bd_t *bis)
 {
-	struct mx28_clkctrl_regs *clkctrl_regs =
-		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+	struct mxs_clkctrl_regs *clkctrl_regs =
+		(struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
 	struct eth_device *dev;
 	int ret;