Revert "resource-manager: Relocate add_resource() in create_resource()"

Revert "resource-manager: Relocate add_resource() in create_resource()"

This reverts commit 5880b22f3e55b60c7b9326c51012b95f05416145.

The resource instance must be added to hashtable prior to the operation
driver->ops.create(resource->id). As this operation passes resource id,
it is possible that the operation work based on that resource id, which
denotes resource instance and must have been registered to hashtable.
Therefore, add_resource() must be followed by driver->ops.create().

Change-Id: I05b8a9f85741313c14201501fe6bbc4a5b8c7233
Signed-off-by: Youngjae Cho <y0.cho@samsung.com>