mmc: sdhci-uhs2: Fix calling incorrect sdhci_set_clock() function

Fix calling incorrect sdhci_set_clock() in __sdhci_uhs2_set_ios() when the
vendor defines its own sdhci_set_clock().

Fixes: 10c8298a ("mmc: sdhci-uhs2: add set_ios()")
Cc: stable@vger.kernel.org # v6.13+
Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>