HID: disconnect control/interrupt channel serially

According to the BT spec, we need to disconnect the interrupt channel
first, and then the control channel. Sometimes the PTS might complain
if we just disconnect these two channels in parallel.

Bug: 344778226
Bug: 387937345
Test: m -j
Test: Run PTS HID/HOS/HCR/BV-04-C
Flag: com.android.bluetooth.flags.disconnect_hid_channels_serially

Change-Id: I2762102c799541483d0f32e707161575c9480166