package/bluez_utils: select BR2_PACKAGE_CHECK

Commit [1] added check package to bluez_utils dependencies without
selecting it at Kconfig level.

Fixes:
Makefile:535: *** check is in the dependency chain of bluez_utils that has added it to its _DEPENDENCIES variable without selecting it or depending on it from Config.in.

[1] 8554be9f

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>