package/coremark-pro: add dependency on threads

Coremark-pro requires threads so add a depends on
BR2_TOOLCHAIN_HAS_THREADS.

Fixes:
- http://autobuild.buildroot.net/results/ab574485a7856fcf5cd643c154c44b4bfcb34a97/

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
1 file changed