goldfish/mmc: Properly restore IRQ on reload.

Change-Id: I667c330bb0d38e5ec3b9077e10b17cc010207b30

hw/android/goldfish/mmc.c

diff --git a/hw/android/goldfish/mmc.c b/hw/android/goldfish/mmc.c
index fbbeed6..aece344 100644
--- a/hw/android/goldfish/mmc.c
+++ b/hw/android/goldfish/mmc.c
@@ -158,7 +158,11 @@
         // Unsupported version!
         return -1;
     }
-    return qemu_get_struct(f, goldfish_mmc_fields, s);
+    if (qemu_get_struct(f, goldfish_mmc_fields, s) < 0) {
+        return -1;
+    }
+    goldfish_device_set_irq(&s->dev, 0, (s->int_status & s->int_enable));
+    return 0;
 }
 
 struct mmc_opcode {