ASoC: mbhc: Fix audio mute for special headset

MICBIAS is disabled extra time during playback session
resulting in mclk also being disabled. This results
in slimbus overflow and audio mute. This can be fixed
by checking whether device connected is special headset
before disabling micbias during report_plug so that
micbias is not disabled again.

CRs-Fixed: 2056268
Change-Id: Iab94ca2d6a3d69a5fa122da2c4f1e8d42ce75155
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>