Use more than one core in deployment script.

Try to detect the number of cores in the system and use that value for make -j.
Gives a noticable speedup depending on the system (OS X doesn't seem to benefit
from it).


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28859 a1c6a512-1295-4272-9138-f99709370657
1 file changed