Fix loop_info/loop_info64 impedance mismatch

LOOP_GET_STATUS64 isn't useful here since the data contained within
isn't actually checked, so stick with the regular LOOP_GET_STATUS here
to match the struct loop_info we're using.

Change-Id: I4f9ff06fa44d4ae3aed046d423054554f9cf450b

Loop.cpp

@@ -149,7 +149,7 @@ int Loop::create(const char *id, const char *loopFile, char *loopDeviceBuffer, s
             return -1;
         }
 
-        rc = ioctl(fd, LOOP_GET_STATUS64, &li);
+        rc = ioctl(fd, LOOP_GET_STATUS, &li);
         if (rc < 0 && errno == ENXIO)
             break;