mb/supermicro/x11ssm-f: configure the BMC jumper JPB1

Set `bmc_jumper_gpio` to the JPB1 gpio to enable/disable BMC/IPMI
according to its value.

Test: Boot with jumper set to each enabled and disabled and check debug
log if IPMI gets enabled/disabled accordingly.

Tested successfully.

Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: I8581556d915cbad2c743a79db273479ba55798fb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48095
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/mainboard/supermicro/x11-lga1151-series/variants/x11ssm-f/overridetree.cb b/src/mainboard/supermicro/x11-lga1151-series/variants/x11ssm-f/overridetree.cb
index 7757b69..8bf60d3 100644
--- a/src/mainboard/supermicro/x11-lga1151-series/variants/x11ssm-f/overridetree.cb
+++ b/src/mainboard/supermicro/x11-lga1151-series/variants/x11ssm-f/overridetree.cb
@@ -89,6 +89,8 @@
 		end
 		device pci 1f.0 on	# LPC Interface
 			chip drivers/ipmi
+				use pch_gpio as gpio_dev
+				register "bmc_jumper_gpio" = "GPP_D22" # JPB1
 				# On cold boot it takes a while for the BMC to start the IPMI service
 				register "wait_for_bmc" = "1"
 				register "bmc_boot_timeout" = "60"