ARM: 7611/1: VIC: fix bug in VIC irqdomain code
The VIC irqdomain code added in commit
07c9249f1fa90cc8189bed44c0bcece664596a72
"ARM: 7554/1: VIC: use irq_domain_add_simple()"
Had two bugs:
1) It didn't call irq_create_mapping() once on each
valid irq source in the slowpath when registering
the controller.
2) It passed a -1 as IRQ offset for the DT case, whereas
0 should be passed as invalid IRQ instead.
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>