meta-phosphor: settings-manager: rename as git

Rename phosphor-settings-manager.bb to phosphor-settings-manager_git.bb
per OE norms.

Change-Id: I350aa6b2e9075af262ea4170509e74b11f9c3de3
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/recipes-phosphor/settings/phosphor-settings-manager.bb b/recipes-phosphor/settings/phosphor-settings-manager_git.bb
similarity index 100%
rename from recipes-phosphor/settings/phosphor-settings-manager.bb
rename to recipes-phosphor/settings/phosphor-settings-manager_git.bb