mmc: sdhci: Move ZYNQ_HISPD_BROKEN to Kconfig

This patch moves CONFIG_ZYNQ_HISPD_BROKEN to Kconfig

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>