[PATCH] usb/serial/option.c: Increase input buffer size

The card sometimes sends >2000 bytes in one single chunk. Ouch.

Signed-Off-By: Matthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>