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/MAINTAINERS b/MAINTAINERS
index 60d4adf..5b139e5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -288,6 +288,7 @@
 F:	drivers/serial/serial_zynq.c
 F:	drivers/spi/zynq_qspi.c
 F:	drivers/spi/zynq_spi.c
+F:	drivers/timer/cadence-ttc.c
 F:	drivers/usb/host/ehci-zynq.c
 F:	drivers/watchdog/cdns_wdt.c
 F:	include/zynqmppl.h