timer: Add Cadence TTC timer counter support

This driver was tested on Xilinx ZynqMP SoC.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/drivers/timer/Makefile b/drivers/timer/Makefile
index a8b531a..ee2fcb1 100644
--- a/drivers/timer/Makefile
+++ b/drivers/timer/Makefile
@@ -4,6 +4,7 @@
 
 obj-y += timer-uclass.o
 obj-$(CONFIG_ALTERA_TIMER)	+= altera_timer.o
+obj-$(CONFIG_CADENCE_TTC_TIMER)	+= cadence-ttc.o
 obj-$(CONFIG_SANDBOX_TIMER)	+= sandbox_timer.o
 obj-$(CONFIG_X86_TSC_TIMER)	+= tsc_timer.o
 obj-$(CONFIG_OMAP_TIMER)	+= omap-timer.o