clk: renesas: cpg-mssr: Make srstclr[] comment block consistent

Make the style of the comment block for the Software Reset Clearing
Register offsets consistent with the comment blocks for the other
register offsets.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/97dde75fe3ff27b9639c59a43cddbd9d5c405d0c.1620119700.git.geert+renesas@glider.be