The serial IRQ (SERIRQ) used by the LPC interface can operate either in
continuous or in quiet mode. Add a Kconfig switch to select the desired
mode. This switch can now be used on mainboard level to enable the
needed mode per mainboard.
Change-Id: Ibe246b88164a622f9c71ebe7bab752a083a49a62
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/16575
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>