platform/x86: hp-wmi: add micmute to hp_wmi_keymap struct

Fixes micmute key of HP Envy X360 ey0xxx.

Signed-off-by: Fae <faenkhauser@gmail.com>
Link: https://lore.kernel.org/r/20230425063644.11828-1-faenkhauser@gmail.com
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/hp/hp-wmi.c

@@ -211,6 +211,7 @@ struct bios_rfkill2_state {
 static const struct key_entry hp_wmi_keymap[] = {
 	{ KE_KEY, 0x02,    { KEY_BRIGHTNESSUP } },
 	{ KE_KEY, 0x03,    { KEY_BRIGHTNESSDOWN } },
+	{ KE_KEY, 0x270,   { KEY_MICMUTE } },
 	{ KE_KEY, 0x20e6,  { KEY_PROG1 } },
 	{ KE_KEY, 0x20e8,  { KEY_MEDIA } },
 	{ KE_KEY, 0x2142,  { KEY_MEDIA } },