mxs: prefix register acessor macros with 'mxs' prefix

As the register accessing mode is the same for all i.MXS SoCs we ought
to use 'mxs' prefix intead of 'mx28'.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
diff --git a/arch/arm/include/asm/arch-mxs/regs-rtc.h b/arch/arm/include/asm/arch-mxs/regs-rtc.h
index e605a03..0b660ae 100644
--- a/arch/arm/include/asm/arch-mxs/regs-rtc.h
+++ b/arch/arm/include/asm/arch-mxs/regs-rtc.h
@@ -27,20 +27,20 @@
 
 #ifndef	__ASSEMBLY__
 struct mx28_rtc_regs {
-	mx28_reg_32(hw_rtc_ctrl)
-	mx28_reg_32(hw_rtc_stat)
-	mx28_reg_32(hw_rtc_milliseconds)
-	mx28_reg_32(hw_rtc_seconds)
-	mx28_reg_32(hw_rtc_rtc_alarm)
-	mx28_reg_32(hw_rtc_watchdog)
-	mx28_reg_32(hw_rtc_persistent0)
-	mx28_reg_32(hw_rtc_persistent1)
-	mx28_reg_32(hw_rtc_persistent2)
-	mx28_reg_32(hw_rtc_persistent3)
-	mx28_reg_32(hw_rtc_persistent4)
-	mx28_reg_32(hw_rtc_persistent5)
-	mx28_reg_32(hw_rtc_debug)
-	mx28_reg_32(hw_rtc_version)
+	mxs_reg_32(hw_rtc_ctrl)
+	mxs_reg_32(hw_rtc_stat)
+	mxs_reg_32(hw_rtc_milliseconds)
+	mxs_reg_32(hw_rtc_seconds)
+	mxs_reg_32(hw_rtc_rtc_alarm)
+	mxs_reg_32(hw_rtc_watchdog)
+	mxs_reg_32(hw_rtc_persistent0)
+	mxs_reg_32(hw_rtc_persistent1)
+	mxs_reg_32(hw_rtc_persistent2)
+	mxs_reg_32(hw_rtc_persistent3)
+	mxs_reg_32(hw_rtc_persistent4)
+	mxs_reg_32(hw_rtc_persistent5)
+	mxs_reg_32(hw_rtc_debug)
+	mxs_reg_32(hw_rtc_version)
 };
 #endif