soc/intel/fsp_baytrail: set up for including irqroute.h twice

irq_helper.h intentionally gets included into irqroute.asl twice - once
for pic mode and once for apic mode.  Since people are used to seeing
guard statements on the .h files, add the guards to irqroute.h and add
a comment to irq_helper.h explaining why they aren't there.  Add a
time.

Change-Id: I882cbbff0f73bdb170bd0f1053767893722dc60a
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/6572
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

0 files changed, 0 insertions, 0 deletions