PIC i8259: Move #defines and functions to i8259.h

The PIC i8259.c file has a lot of #defines and function
definitions in it.  I am moving these to the i8259.h file
and also adding a few functions to update the PIC IRQ mask
register.  The PIC default configuration has all of its
interrupts masked off except for IRQ2.  IRQ2 is where
the Slave PIC is cascaded from the Master PIC.

Change-Id: I78d505358c29fadbc184137a09120863ea1d5c13
Signed-off-by: Mike Loptien <mike.loptien@se-eng.com>
Reviewed-on: http://review.coreboot.org/5950
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

0 files changed, 0 insertions, 0 deletions