meta-ibm: system1: Turn on serial GPIO config

Turn on SGPIO config for the IBM system1 bmc.
system1 bmc uses it to query fpga for example fault status.

Change-Id: I19a5e87a252ce7b8f21235edfed079c8d98d9f93
Signed-off-by: Ninad Palsule <ninad@linux.ibm.com>
diff --git a/meta-ibm/meta-system1/recipes-kernel/linux/linux-aspeed/system1.cfg b/meta-ibm/meta-system1/recipes-kernel/linux/linux-aspeed/system1.cfg
index c6406af..a6a7d3c 100644
--- a/meta-ibm/meta-system1/recipes-kernel/linux/linux-aspeed/system1.cfg
+++ b/meta-ibm/meta-system1/recipes-kernel/linux/linux-aspeed/system1.cfg
@@ -44,3 +44,4 @@
 CONFIG_SENSORS_PLI1209BC_REGULATOR=y
 CONFIG_TCG_TPM=y
 CONFIG_TCG_TIS_I2C=y
+CONFIG_GPIO_ASPEED_SGPIO=y