Add separate sniff mode settings for gamepads

For gamepads, the sniff intervals need to be much shorter. The
min is set to 14 slots (8.75ms) and max is set to 18 slots
(11.25ms).

Test: Load >=4.10 hid-sony driver, connect a DualShock4, check its
      responsiveness.
      Wait for 5 minutes, wake it up (if it went into PARK mode)
      and check that it's still as responsive.
      Furthermore, use a Bluetooth sniffer to confirm the sniff
      interval.
Bug: 38511270
Change-Id: I27e2e0c8e88ab51800c4976e0971c92a3793f8d2