build(rk3399): m0: Makefile: respect verbosity for linkerfile

All commands in the Makefile respect the verbosity except this one, so
let's be consistent and respect it for that one as well.

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Change-Id: I5d1af4ee321e29449b927509cfa5ece01765a99e
1 file changed