commit bc4725d9 upstream.

The intention was to enable the checks if debugging is enabled, not
disabled.

Fixes: f793d1e5 ("clk: shmobile: Add new CPG/MSSR driver core")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>