hikey.conf: remove uim from MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS
hikey.conf: remove uim from MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS

uim isn't needed anymore with 4.9 kernel. hciattach is used.
We still need TIInit_11.8.32.bts bluetooth firmware.

Signed-off-by: Fathi Boudra <7cd6e55cc07a66bc71d7901a4cddfe6c22aab659@linaro.org>

mrchapp/meta-96boards,fboudra/meta-96boards,96boards/meta-96boards,kraj/meta-96boards,kraj/meta-96boards