plug interrupt and fix some readl/readw mismatches We already have code that handles hotplug interrupt indications in ADMA mode, this turns on the control flag that actually enables these interrupts. Also fixes some cases in the same functions where a 16-bit register was read using a readl instead of a readw. Signed-off-by: Robert Hancock Signed-off-by: Jeff Garzik žù×X˜+x