meta-facebook: harma: enable SPI-GPIO in kconfig

Add spi gpio from tpm2

Change-Id: Id6b82fc29a01ec327cc50a9edbde0810d28f15ea
Signed-off-by: Peter Yin <peter.yin@quantatw.com>
diff --git a/meta-facebook/meta-harma/recipes-kernel/linux/linux-aspeed/harma.cfg b/meta-facebook/meta-harma/recipes-kernel/linux/linux-aspeed/harma.cfg
index 86f8d53..8b06613 100644
--- a/meta-facebook/meta-harma/recipes-kernel/linux/linux-aspeed/harma.cfg
+++ b/meta-facebook/meta-harma/recipes-kernel/linux/linux-aspeed/harma.cfg
@@ -76,3 +76,6 @@
 CONFIG_I3C=y
 CONFIG_APML_SBRMI=y
 CONFIG_APML_SBTSI=y
+
+# SPI GPIO
+CONFIG_SPI_GPIO=y