BugLink: https://bugs.launchpad.net/bugs/1853881

Ubuntu commit 430470d7fa02 ("fbdev: Remove unused SH-Mobile HDMI driver") from
an upstream stable update removes this driver.
Signed-off-by: Connor Kuehl <connor.kuehl@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>