ALSA: hda - Enable internal mic on a Thinkpad machine with ALC283

More thorough testing showed that these verbs were necessary to
improve quality of the internal mic. Patch originally from Realtek.

BugLink: https://bugs.launchpad.net/bugs/1231931


Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>