Yocto 2.4

Move OpenBMC to Yocto 2.4(rocko)

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I12057b18610d6fb0e6903c60213690301e9b0c67
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/import-layers/meta-virtualization/recipes-extended/ipxe/ipxe_git.bb b/import-layers/meta-virtualization/recipes-extended/ipxe/ipxe_git.bb
index d52c567..c0c8a7b 100644
--- a/import-layers/meta-virtualization/recipes-extended/ipxe/ipxe_git.bb
+++ b/import-layers/meta-virtualization/recipes-extended/ipxe/ipxe_git.bb
@@ -8,7 +8,7 @@
 PV = "gitr${SRCPV}"
 PR = "r0"
 
-SRC_URI = "git://git.ipxe.org/ipxe.git;protocol=git"
+SRC_URI = "git://git.ipxe.org/ipxe.git;protocol=https"
 
 FILES_${PN} = "/usr/share/firmware/*.rom"