drivers/card_reader/rtsx_usb: Restore interrupt based detection

This commit reintroduces interrupt-based card detection previously
used in the rts5139 driver. This functionality was removed in commit
00d8521d ("staging: remove rts5139 driver code").

Reintroducing this mechanism fixes presence detection for certain card
readers, which with the current driver, will taken approximately 20
seconds to enter S3 as `mmc_rescan` has to be frozen.

Fixes: 00d8521d ("staging: remove rts5139 driver code")
Cc: stable@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Link: https://lore.kernel.org/r/20241119085815.11769-1-sean@starlabs.systems


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>