keystone2: clock: add K2L clock definitions and commands

This patch adds clock definitions and commands to support Keystone II
K2L SOC.

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/Makefile b/arch/arm/cpu/armv7/keystone/Makefile
index 3d8fb70..4750371 100644
--- a/arch/arm/cpu/armv7/keystone/Makefile
+++ b/arch/arm/cpu/armv7/keystone/Makefile
@@ -10,6 +10,7 @@
 obj-y	+= clock.o
 obj-$(CONFIG_SOC_K2HK) += clock-k2hk.o
 obj-$(CONFIG_SOC_K2E) += clock-k2e.o
+obj-$(CONFIG_SOC_K2L) += clock-k2l.o
 obj-y	+= cmd_clock.o
 obj-y	+= cmd_mon.o
 obj-y	+= msmc.o