K 10
svn:author
V 5
gonzo
K 8
svn:date
V 27
2012-07-17T03:18:12.887544Z
K 7
svn:log
V 335
Move unmask IRQ function call up to nexus device level.

FDT-enabled targets were broken after r238043 that relies
on device up the hierarchy to properly setup interrupt.
nexus device for ARM platforms did job only partially:
setting handler but not unmasking interrupt. Unmasking
was performed by platform code.

Reviewed by:	andrew@

END