arm64: defconfig: enable clock driver for ZynqMP platforms

The Zynqmp Ultrascale clock controller generates clocks for peripherals
by default. So enable this clock driver for ZynqMP platforms.
Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Link: https://lore.kernel.org/r/20201209021416.1017790-1-quanyang.wang@windriver.comSigned-off-by: Michal Simek <michal.simek@xilinx.com>

arch/arm64/configs/defconfig

@@ -901,6 +901,7 @@ CONFIG_COMMON_CLK_FSL_SAI=y
 CONFIG_COMMON_CLK_S2MPS11=y
 CONFIG_COMMON_CLK_PWM=y
 CONFIG_COMMON_CLK_VC5=y
+CONFIG_COMMON_CLK_ZYNQMP=y
 CONFIG_COMMON_CLK_BD718XX=m
 CONFIG_CLK_RASPBERRYPI=m
 CONFIG_CLK_IMX8MM=y