mmc: sdhci-pxav2: enable CONFIG_MMC_SDHCI_IO_ACCESSORS

Enable CONFIG_MMC_SDHCI_IO_ACCESSORS for the pxav2 driver. The read_w
callback is needed for a silicon bug workaround in the PXA168.
Signed-off-by: Doug Brown <doug@schmorgal.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230116194401.20372-3-doug@schmorgal.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/Kconfig

@@ -360,6 +360,7 @@ config MMC_SDHCI_PXAV2
 	depends on MMC_SDHCI_PLTFM
 	depends on ARCH_MMP || COMPILE_TEST
 	default CPU_PXA910
+	select MMC_SDHCI_IO_ACCESSORS
 	help
 	  This selects the Marvell(R) PXAV2 SD Host Controller.
 	  If you have a PXA9XX platform with SD Host Controller