arm, davinci: add RTC base addr

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Paulraj Sandeep <s-paulraj@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

arch/arm/include/asm/arch-davinci/hardware.h

@@ -128,6 +128,7 @@ typedef volatile unsigned int *	dv_reg_p;
 #define DAVINCI_TIMER0_BASE			0x01c20000
 #define DAVINCI_TIMER1_BASE			0x01c21000
 #define DAVINCI_WDOG_BASE			0x01c21000
+#define DAVINCI_RTC_BASE			0x01c23000
 #define DAVINCI_PLL_CNTRL0_BASE			0x01c11000
 #define DAVINCI_PLL_CNTRL1_BASE			0x01e1a000
 #define DAVINCI_PSC0_BASE			0x01c10000