Close uhid file and polling thread together

UHID file descriptor is closed by btif_hh in jni thread on disconnection
or open failure while the UHID polling thread is closed by bta_hh in the
main thread on disconnection.
Closing UHID file descriptor without stopping polling thread can result
in high battery drain.
This change ensures that UHID fd closure is aligned  with closing of the
polling thread.

Bug: 280170626
Test: Regression
(cherry picked from https://android-review.googlesource.com/q/commit:5d0360323fc9157397ddfa035e987c1e9c5258ad)
Merged-In: I64daa836351f1ab3766947353d7824364eb9530f
Change-Id: I64daa836351f1ab3766947353d7824364eb9530f