gevent-websocket: move to Phosphor layer

This recipe was erroneously merged directly into the meta-virt
subtree with 1ea01342e.  Move to the phosphor layer.

Tested: Built an image and verified gevent-websocket still installed
Change-Id: I33eba0dedbd5ff2a522ddab526e5787345a2f5d5
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/import-layers/meta-virtualization/recipes-devtools/python/python-gevent-websocket_0.10.1.bb b/meta-phosphor/common/recipes-devtools/python/python-gevent-websocket_0.10.1.bb
similarity index 100%
rename from import-layers/meta-virtualization/recipes-devtools/python/python-gevent-websocket_0.10.1.bb
rename to meta-phosphor/common/recipes-devtools/python/python-gevent-websocket_0.10.1.bb