uboot-imx

arm64: zynqmp: Do not protect zynqmp_pmufw_version()

There is hard dependency for CLK_ZYNQMP to have zynqmp_pmufw_version()
but also FPGA code is calling this function which is possible to use
without actual CLK_ZYNQMP firmware driver to be enabled.
This patch enables the case where only fixed-clock CLK setup is used.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>