Fix IRQ flags for Apollon and OSK (OMAP5912) board. Apollon 
fix from
Kyungmin Park (kyungmin.park_at_samsung.com):

Apollon (omap2420) use IRQF_TRIGGER_RISING which means
IRQF_TRIGGER_HIGH.

Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com>