meta-bletchley: configure 57600 baudrate

Specific patch for bletchley only

Change-Id: Ic059caf023a305e137a01fda5b9cc6e6d9299849
Signed-off-by: Howard Chiu <howard.chiu@quantatw.com>
diff --git a/meta-facebook/meta-bletchley/recipes-bsp/u-boot/u-boot-aspeed-sdk_%.bbappend b/meta-facebook/meta-bletchley/recipes-bsp/u-boot/u-boot-aspeed-sdk_%.bbappend
new file mode 100644
index 0000000..2789df9
--- /dev/null
+++ b/meta-facebook/meta-bletchley/recipes-bsp/u-boot/u-boot-aspeed-sdk_%.bbappend
@@ -0,0 +1,5 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+SRC_URI += " \
+            file://0001-u-boot-ast2600-57600-baudrate-for-bletchley.patch \
+           "