MAINTAINERS: Fix zynqmp clock driver path

Fix c&p error from Zynq.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index fde77b2..c033e07 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -273,7 +273,7 @@
 S:	Maintained
 T:	git git://git.denx.de/u-boot-microblaze.git
 F:	arch/arm/mach-zynq/
-F:	drivers/clk/clk_zynq.c
+F:	drivers/clk/clk_zynqmp.c
 F:	drivers/fpga/zynqpl.c
 F:	drivers/gpio/zynq_gpio.c
 F:	drivers/i2c/i2c-cdns.c