* [alsa] Add cmake wrapper.
This adds the imported location for both Debug and Release
configurations, and sets the target's INTERFACE_LINK_LIBRARIES and the
ALSA_LIBRARIES variable to the same libraries as the pkg-config file.
* [alsa] Update baseline.
* [alsa] Update to 1.2.8.
* [alsa] Update baseline.
* [alsa] Remove redundant error message in portfile.
This issue is handled in through the manifest "supports" field.
* [alsa] Update version.
