Public bug reported:

[Impact]
Mute/micmute LEDs don't work.
In addition, the internal mic can only capture lots of noises.

[Fix]
Use Realtek specific coef to enable LEDs and limit mic boost on the
platform.

[Test]
With the patch applied, the both LEDs start to work, and audio recording
becomes crystal clear.

[Where problems could occur]
It's a trivial change to a brand new device, so no existing device is
affected.

** Affects: hwe-next
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: Confirmed

** Affects: linux-oem-5.10 (Ubuntu)
     Importance: Undecided
         Status: Invalid

** Affects: linux (Ubuntu Focal)
     Importance: Undecided
         Status: Won't Fix

** Affects: linux-oem-5.10 (Ubuntu Focal)
     Importance: Medium
         Status: Confirmed

** Affects: linux (Ubuntu Hirsute)
     Importance: Medium
         Status: Confirmed

** Affects: linux-oem-5.10 (Ubuntu Hirsute)
     Importance: Undecided
         Status: Invalid


** Tags: oem-priority originate-from-1923711 originate-from-1923712 stella

** Also affects: linux-oem-5.10 (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

** Also affects: linux-oem-5.10 (Ubuntu Hirsute)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Also affects: linux-oem-5.10 (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Changed in: linux-oem-5.10 (Ubuntu Hirsute)
       Status: New => Invalid

** Changed in: linux-oem-5.10 (Ubuntu Focal)
       Status: New => Confirmed

** Changed in: linux-oem-5.10 (Ubuntu Focal)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Hirsute)
       Status: New => Confirmed

** Changed in: linux (Ubuntu Hirsute)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Focal)
       Status: New => Won't Fix

** Tags added: oem-priority originate-from-1923711 stella

** Tags added: originate-from-1923712

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https://bugs.launchpad.net/bugs/1925415

Title:
  Enable mute/micmute LEDs and limit mic boost on EliteBook 845 G8

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