mmc: quirks: fix truncation warnings

Fix data truncation warnings: .manfid is not unsigned long:

drivers/mmc/core/quirks.c:36: warning: large integer implicitly truncated to unsigned type
drivers/mmc/core/quirks.c:40: warning: large integer implicitly truncated to unsigned type
drivers/mmc/core/quirks.c:43: warning: large integer implicitly truncated to unsigned type
drivers/mmc/core/quirks.c:46: warning: large integer implicitly truncated to unsigned type

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Chris Ball <cjb@laptop.org>