[PATCH] pcmcia: fix deadlock in pcmcia_parse_events

The PCMCIA layer calls pcmcia_parse_events both from user context and
IRQ context; the lock thus needs to be irqsave to avoid deadlocks

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>