ALSA: HDA - Limit mic boost and add mute LED for an HP machine

This machine has a mute LED as well as a noisy internal mic. Hence it needs
quirks for both limiting the mic boost as well as enabling the LED.

BugLink: https://bugs.launchpad.net/bugs/1248476


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