misc/tifm_7xx1: replace deprecated irq flag

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Cc: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>