meta-bletchley: kernel: enable SPI_GPIO config

enable SPI_GPIO feature

Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: I24bb13acfbddcff14c5f15fbd9262ba1b019d9f7
diff --git a/meta-facebook/meta-bletchley/recipes-kernel/linux/linux-aspeed/bletchley.cfg b/meta-facebook/meta-bletchley/recipes-kernel/linux/linux-aspeed/bletchley.cfg
index c77b942..49e07a2 100644
--- a/meta-facebook/meta-bletchley/recipes-kernel/linux/linux-aspeed/bletchley.cfg
+++ b/meta-facebook/meta-bletchley/recipes-kernel/linux/linux-aspeed/bletchley.cfg
@@ -25,3 +25,6 @@
 CONFIG_TYPEC=y
 CONFIG_TYPEC_TCPM=y
 CONFIG_TYPEC_FUSB302=y
+# SPI GPIO
+CONFIG_SPI_GPIO=y
+CONFIG_SPI_BITBANG=y