Revert "sh: add loglvl to printk_address()"

This reverts commit 2deebe4d.

printk_address() is always used as a continuation of the previous
logging, hence it should not include a log level.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rich Felker <dalias@libc.org>