clocksource/drivers/ti-32K: Fix misuse of "/**" comment

Change "/**" to a common "/*" comment in a non-kernel-doc comment to
avoid a kernel-doc warning:

timer-ti-32k.c:42: warning: expecting prototype for timer(). Prototype was for OMAP2_32KSYNCNT_REV_OFF() instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240120173624.16769-1-rdunlap@infradead.org

drivers/clocksource/timer-ti-32k.c

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-only
-/**
+/*
  * timer-ti-32k.c - OMAP2 32k Timer Support
  *
  * Copyright (C) 2009 Nokia Corporation