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/conf/machine/mihawk.conf b/meta-ibm/conf/machine/mihawk.conf
index c4373ad..72c788b 100644
--- a/meta-ibm/conf/machine/mihawk.conf
+++ b/meta-ibm/conf/machine/mihawk.conf
@@ -22,7 +22,7 @@
 
 PHOSPHOR_MRW_LICENSE = "Apache-2.0"
 PHOSPHOR_MRW_LIC_FILES_CHKSUM = "file://LICENSE;md5=86d3f3a95c324c9479bd8986968f4327"
-PHOSPHOR_MRW_URI = "git://github.com/open-power/mihawk-xml"
+PHOSPHOR_MRW_URI = "git://github.com/open-power/mihawk-xml;branch=master;protocol=https"
 PHOSPHOR_MRW_REV = "f6ec5aa0f9803d44b147a7670dec7ec935f59582"