hikey960.mk: Enable the common linux bluetooth HAL for 4.9+ kernels

With 4.9+ we should be able to use the common linux bluetooth HAL
instead of the legacy TI one with hikey960.

Change-Id: I8dda8029079098f99a960a4a068023a126dfae4b
Signed-off-by: John Stultz <john.stultz@linaro.org>
1 file changed