treewide: fix up github SRC_URIs

Per [1], Yocto is going to start requiring both branch names and
`protocol=https` in GitHub SRC_URI variables.  Ran the upstream tool to
automatically fix our URIs.

1. https://git.yoctoproject.org/poky/tree/documentation/migration-guides/migration-3.5.rst#n10

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I5f9619f7ff707050b469ae74c8aa16846568c5e4
diff --git a/meta-ibm/meta-fsp2/recipes-bsp/u-boot/u-boot-fsp2_git.bb b/meta-ibm/meta-fsp2/recipes-bsp/u-boot/u-boot-fsp2_git.bb
index 941f8b4..aae0c09 100644
--- a/meta-ibm/meta-fsp2/recipes-bsp/u-boot/u-boot-fsp2_git.bb
+++ b/meta-ibm/meta-fsp2/recipes-bsp/u-boot/u-boot-fsp2_git.bb
@@ -1,6 +1,6 @@
 require recipes-bsp/u-boot/u-boot.inc
 
-SRC_URI = "git://github.com/openbmc/u-boot;branch=v2017.11-fsp2-openbmc"
+SRC_URI = "git://github.com/openbmc/u-boot;branch=v2017.11-fsp2-openbmc;protocol=https"
 SRCREV = "d675f0a16ecc876b1aa78b4151af89c80fe0f4b9"
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://Licenses/gpl-2.0.txt;md5=b234ee4d69f5fce4486a80fdaf4a4263"