clk: renesas: cpg-mssr: Unlock before reset verification

clk: renesas: cpg-mssr: Unlock before reset verification

Move spin_unlock_irqrestore() before verifying the reset result and
printing errors. The verification condition only uses local variables
and does not require locking.

Reported-by: Pavel Machek <pavel@nabladev.com>
Closes: https://lore.kernel.org/all/aVujAQJSDn6WyORK@duo.ucw.cz/
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260105140625.2590685-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>