ARM: VIC: shrink down vic.h

From: Rob Herring <rob.herring at calxeda.com>

Move all register defines except VIC_INT_ENABLE and VIC_INT_ENABLE_CLEAR
which are used by Samsung.

With multi irq handler, vic.h is not included in assembly any more, so
we can remove the assembly ifdefs.

Signed-off-by: Rob Herring <rob.herring at calxeda.com>
Cc: Russell King <linux at arm.linux.org.uk>
Acked-by: Olof Johansson <olof at lixom.net>