ewaol-distro/ostree: Use https protocol for github

The unauthenticated git protocol on port 9418 is no longer supported in github.
this case we need to pass ';protocol=https' in SRC_URI
Change based on https://cgit.openembedded.org/meta-openembedded/commit/meta-oe/recipes-extended/ostree/ostree_2021.1.bb?h=hardknott&id=7fbb2767186a4db729efe4f440cc9a992f2ab183



Issue-Id: SCM-4188
Signed-off-by: Diego Sueiro <diego.sueiro@arm.com>
Change-Id: I7903c5900910e630fb70ef59c57c0610a1c26a8d