Add mic mute keyboard led. (2/2)

Change-Id: I6e18c9d99d562aec112fc8ecb3d4e916285368c6
Test: Built
diff --git a/services/inputflinger/reader/EventHub.cpp b/services/inputflinger/reader/EventHub.cpp
index 3ca691e..fe70a51 100644
--- a/services/inputflinger/reader/EventHub.cpp
+++ b/services/inputflinger/reader/EventHub.cpp
@@ -123,7 +123,8 @@
          {"multi_index", InputLightClass::MULTI_INDEX},
          {"multi_intensity", InputLightClass::MULTI_INTENSITY},
          {"max_brightness", InputLightClass::MAX_BRIGHTNESS},
-         {"kbd_backlight", InputLightClass::KEYBOARD_BACKLIGHT}};
+         {"kbd_backlight", InputLightClass::KEYBOARD_BACKLIGHT},
+         {"mic_mute", InputLightClass::KEYBOARD_MIC_MUTE}};
 
 // Mapping for input multicolor led class node names.
 // https://www.kernel.org/doc/html/latest/leds/leds-class-multicolor.html