Updated *-p10,pnor,xml package download sites to use SSH URLs

Updated occ-p10, hcode-p10, hostboot-p10, sbe-p10, openpower-pnor, machine XML
to use SSH URLs instead of HTTPS URLs

Signed-off-by: Nick Bofferding <bofferdn@us.ibm.com>
diff --git a/openpower/package/hostboot-p10/hostboot-p10.mk b/openpower/package/hostboot-p10/hostboot-p10.mk
index 20a6f32..cd8f09a 100644
--- a/openpower/package/hostboot-p10/hostboot-p10.mk
+++ b/openpower/package/hostboot-p10/hostboot-p10.mk
@@ -8,7 +8,7 @@
 # TODO: WORKAROUND: Need to reenable next line and comment out the two lines
 # after that, when code is propagated to a public repo
 #HOSTBOOT_P10_SITE ?= $(call github,open-power,hostboot,$(HOSTBOOT_P10_VERSION))
-HOSTBOOT_P10_SITE = https://github.ibm.com/open-power/hostboot.git
+HOSTBOOT_P10_SITE = git@github.ibm.com:open-power/hostboot.git
 HOSTBOOT_P10_SITE_METHOD=git
 
 HOSTBOOT_P10_LICENSE = Apache-2.0