meta-openpower: debug-collector: rename as git

Rename openpower-debug-collector.bb to openpower-debug-collector_git.bb
per OE norms.

Change-Id: Idc3cf060f9680486cedf7767861de061f7de81c7
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/recipes-phosphor/debug/openpower-debug-collector.bb b/recipes-phosphor/debug/openpower-debug-collector_git.bb
similarity index 100%
rename from recipes-phosphor/debug/openpower-debug-collector.bb
rename to recipes-phosphor/debug/openpower-debug-collector_git.bb