mmc: Add status IRQ and status callback function to mmc platform data

Signed-off-by: San Mehat <san@google.com>
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index 2111481..e9f2337 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -55,6 +55,8 @@
 	bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
 	void *dma_rx_param;
 	void *dma_tx_param;
+	unsigned int status_irq;
+	int (*register_status_notify)(void (*callback)(int card_present, void *dev_id), void *dev_id);
 };
 
 #endif