Update SeaBIOS URL

We have a http accessible SeaBIOS mirror at review.coreboot.org.
Use it.

Change-Id: Icce8e4f9ca1fa69966c82423b2b27057f15b30d2
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/1020
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>
diff --git a/payloads/external/SeaBIOS/Makefile.inc b/payloads/external/SeaBIOS/Makefile.inc
index 70bbc78..e0f03b1 100644
--- a/payloads/external/SeaBIOS/Makefile.inc
+++ b/payloads/external/SeaBIOS/Makefile.inc
@@ -9,7 +9,7 @@
 
 $(OUT)/seabios:
 	echo "    Cloning SeaBIOS from Git"
-	git clone git://git.seabios.org/seabios.git $(OUT)/seabios
+	git clone http://review.coreboot.org/p/seabios.git $(OUT)/seabios
 
 fetch: $(OUT)/seabios
 	cd $(OUT)/seabios; git show $(TAG-y) >/dev/null 2>&1 ;	if [ $$? -ne 0 ]; \