mb/lenovo/x131e: enable mSATA slot

Per google/stout.

Tested with SanDisk SSD U110.

Change-Id: I7cc9837f572236acac2007e95990e64c25a5d6e2
Signed-off-by: James Ye <jye836@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31364
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
diff --git a/src/mainboard/lenovo/x131e/devicetree.cb b/src/mainboard/lenovo/x131e/devicetree.cb
index 2a98a60..2d15d87 100644
--- a/src/mainboard/lenovo/x131e/devicetree.cb
+++ b/src/mainboard/lenovo/x131e/devicetree.cb
@@ -49,8 +49,8 @@
 			register "gpi6_routing" = "2"
 			register "gpi13_routing" = "2"
 
-			# Enable SATA ports
-			register "sata_port_map" = "0x1"
+			# Enable SATA ports 0 (2.5 inch) and 1 (mSATA)
+			register "sata_port_map" = "0x3"
 			# Set max SATA speed to 6.0 Gb/s
 			register "sata_interface_speed_support" = "0x3"