Fix support status for OS::Heat::SoftwareComponent

Since SoftwareComponent is derived from SoftwareConfig, the support
status 2014.1 inherited from SoftwareConfig was incorrectly shown for
the SoftwareComponent resource.
This patch fixes the problem by correctly setting support_status in
the SoftwareComponent resource.

Change-Id: I973755f11e21ccb4f8bbc532da4de964e07c65f1
Merge "Fix support status for OS::Heat::SoftwareComponent"