LPC serial IRQs were being left enabled when there is no LPC serial device.

Signed-off-by: Marc Jones <marc.jones@amd.com>


Index: mainboard/pcengines/alix2c3/dts
===================================================================
--- mainboard/pcengines/alix2c3/dts	(revision 980)
+++ mainboard/pcengines/alix2c3/dts	(working copy)
@@ -34,9 +34,9 @@
 			/config/("southbridge/amd/cs5536/dts");
 			/* Interrupt enables for LPC bus.
 			 *  Each bit is an IRQ 0-15. */
-			lpc_serirq_enable = "0x0000105A";
+			lpc_serirq_enable = "0x00001002";
 			/* LPC IRQ polarity. Each bit is an IRQ 0-15. */
-			lpc_serirq_polarity = "0x0000EFA5";
+			lpc_serirq_polarity = "0x0000EFFD";
 			/* 0:continuous 1:quiet */
 			lpc_serirq_mode = "1";
 			/* GPIO(0-0x20) for INT D:C:B:A, 0xFF=none. 
