superio/aspeed/ast2400: drop non-onetime-config registers for iLPC2AHB

The specified PNP registers PNP_MSC0-E (F0-FE) are part of the iLPC2AHB
bridge's index/value interface. They are no one-time config registers
so we can't specify a sane value in the devicetree.

Thus, drop them to stop coreboot from complaining about the missing
entries.

Change-Id: I7d7f16845c755592317f140cca66cca12032f7a6
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39093
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/superio/aspeed/ast2400/superio.c b/src/superio/aspeed/ast2400/superio.c
index a3d92c2..4867f6e 100644
--- a/src/superio/aspeed/ast2400/superio.c
+++ b/src/superio/aspeed/ast2400/superio.c
@@ -82,10 +82,7 @@
 	{ NULL, AST2400_GPIO,     PNP_IRQ0, }, // GPIO LDN has no IO Region
 	{ NULL, AST2400_SUART3,   PNP_IO0 | PNP_IRQ0 | PNP_MSC0, 0xfff8, },
 	{ NULL, AST2400_SUART4,   PNP_IO0 | PNP_IRQ0 | PNP_MSC0, 0xfff8, },
-	{ NULL, AST2400_ILPC2AHB, PNP_IRQ0 | PNP_MSC0 | PNP_MSC1 | PNP_MSC2
-		| PNP_MSC3 | PNP_MSC4 | PNP_MSC5 | PNP_MSC6 | PNP_MSC7
-		| PNP_MSC8 | PNP_MSC9 | PNP_MSCA | PNP_MSCB | PNP_MSCC
-		| PNP_MSCD | PNP_MSCE, },
+	{ NULL, AST2400_ILPC2AHB, PNP_IRQ0 },
 	{ NULL, AST2400_MAILBOX,  PNP_IO0 | PNP_IRQ0, 0xfffe, },
 };