libusb dependencies are wrong since the addition of the package in
commit f7aac1c008f9c59f8c669bade17864b099221065:
- BR2_HOST_GCC_AT_LEAST_4_9 is used instead of
BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
- BR2_TOOLCHAIN_HAS_THREADS is missing
Fixes: f7aac1c008
- http://autobuild.buildroot.org/results/22689afc092e33b6e3c1c7ffea0d0e3b5bf76d99
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>