mmc: sdhci-of-arasan: Modify data type of the clk_phase array

Modify the data type of the clk_phase array to u32 to make it compatible
with the argument requirement of "of_property_read_variable_u32_array".

Addresses-coverity: ("incompatible_param")
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/1623753837-21035-7-git-send-email-manish.narani@xilinx.com


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>