[PATCH] I2C: fix sx200_acb build on other arches

scx200_acb is only useful on a few Geode-based systems, and won't
compile on non-x86 systems due to the lack of asm/msr.h, as reported
by Andrew Morton. Thus, we should make that driver depend on X86.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 1a3bf423..7d2705a 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -390,7 +390,7 @@
 
 config SCx200_ACB
 	tristate "Geode ACCESS.bus support"
-	depends on I2C && PCI
+	depends on X86_32 && I2C && PCI
 	help
 	  Enable the use of the ACCESS.bus controllers on the Geode SCx200 and
 	  SC1100 processors and the CS5535 and CS5536 Geode companion devices.