arm64: zynqmp: Add resets property to sdhci nodes

Add "resets" property to sdhci nodes. Resets property is used to reset the
SD host controller when dynamic configuration support is enabled.

Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/8f8592d6454c024c8f8b92e56c9009c65ad1d54a.1683034376.git.michal.simek@amd.com