board: k2e-evm: add board support

This patch adds Keystone2 k2e_evm evaluation board support.

Signed-off-by: Hao Zhang <hzhang@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
diff --git a/arch/arm/include/asm/arch-keystone/hardware.h b/arch/arm/include/asm/arch-keystone/hardware.h
index bcfb551..ddeb06e 100644
--- a/arch/arm/include/asm/arch-keystone/hardware.h
+++ b/arch/arm/include/asm/arch-keystone/hardware.h
@@ -119,6 +119,7 @@
 
 #define KS2_PLL_CNTRL_BASE		0x02310000
 #define KS2_CLOCK_BASE			KS2_PLL_CNTRL_BASE
+#define KS2_RSTCTRL_RSTYPE		(KS2_PLL_CNTRL_BASE + 0xe4)
 #define KS2_RSTCTRL			(KS2_PLL_CNTRL_BASE + 0xe8)
 #define KS2_RSTCTRL_KEY			0x5a69
 #define KS2_RSTCTRL_MASK		0xffff0000