samus: Change touchscreen bootloader mode i2c address

This value apparently changed to 0x27 in the hardware but was
never adjusted in firmware.

BUG=chrome-os-partner:33790
BRANCH=samus
TEST=build and boot on samus

Change-Id: Ib610fc6522715e3c841c337d420ec63563bec798
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: e01d3b47bf49861e9d53fc8db41890fe4c91ff9b
Original-Change-Id: I10ca7b77068491e143f8bf2463b481eada910618
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/230232
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9274
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/mainboard/google/samus/acpi/mainboard.asl b/src/mainboard/google/samus/acpi/mainboard.asl
index feecac3..39797e5 100644
--- a/src/mainboard/google/samus/acpi/mainboard.asl
+++ b/src/mainboard/google/samus/acpi/mainboard.asl
@@ -258,7 +258,7 @@
 		Name (_CRS, ResourceTemplate()
 		{
 			I2cSerialBus (
-				0x25,                     // SlaveAddress
+				0x27,                     // SlaveAddress
 				ControllerInitiated,      // SlaveMode
 				400000,                   // ConnectionSpeed
 				AddressingMode7Bit,       // AddressingMode