Define UART4 and UART5 base addresses

Signed-off-by: Stefano Babic <sbabic@denx.de>

arch/arm/include/asm/arch-mx5/imx-regs.h

@@ -93,6 +93,7 @@
 #define GPIO5_BASE_ADDR         (AIPS1_BASE_ADDR + 0x000DC000)
 #define GPIO6_BASE_ADDR         (AIPS1_BASE_ADDR + 0x000E0000)
 #define GPIO7_BASE_ADDR         (AIPS1_BASE_ADDR + 0x000E4000)
+#define UART4_BASE_ADDR         (AIPS1_BASE_ADDR + 0x000F0000)
 #endif
 /*
  * AIPS 2
@@ -133,6 +134,10 @@
 #define VPU_BASE_ADDR		(AIPS2_BASE_ADDR + 0x000F4000)
 #define SAHARA_BASE_ADDR	(AIPS2_BASE_ADDR + 0x000F8000)
 
+#if defined(CONFIG_MX53)
+#define UART5_BASE_ADDR         (AIPS2_BASE_ADDR + 0x00090000)
+#endif
+
 /*
  * WEIM CSnGCR1
  */