keystone2: k2l-evm: add board support

This patch adds Keystone II Lammar (K2L) EVM board support.

Acked-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Hao Zhang <hzhang@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
diff --git a/arch/arm/cpu/armv7/keystone/Kconfig b/arch/arm/cpu/armv7/keystone/Kconfig
index 8249b5e..393885f 100644
--- a/arch/arm/cpu/armv7/keystone/Kconfig
+++ b/arch/arm/cpu/armv7/keystone/Kconfig
@@ -9,6 +9,9 @@
 config TARGET_K2E_EVM
 	bool "TI Keystone 2 Edison EVM"
 
+config TARGET_K2L_EVM
+	bool "TI Keystone 2 Lamar EVM"
+
 endchoice
 
 config SYS_CPU