meta/recipes-multimedia: Add HOMEPAGE / DESCRIPTION

Added missing HOMEPAGE and DESCRIPTION found using the test command
`oe-selftest -r distrodata.Distrodata.test_missing_homepg`

[YOCTO #13471]

Signed-off-by: Dorinda Bassey <dorindabassey@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit ab7a945f)
Signed-off-by: Steve Sakoman <steve@sakoman.com>