Allow Sniff for HID when (e)SCO active

Currently stack disables sniff for HID link when eSCO is active.
This was needed only for legacy controllers. The current
controllers do not require this change and this change
has an adverse impact on the coex conditions (WLAN+HID+eSCO)

Bug: 188481980
Test: Link policy tests for HID and eSCO
Change-Id: I63c7a3adb5c32087b34f253a503076f83249f3b7