regulator: stpmic1: Fix kernel-doc notation warnings

regulator: stpmic1: Fix kernel-doc notation warnings

No functional modification involved.

drivers/regulator/stpmic1_regulator.c:31: warning: expecting prototype for struct stpmic1. Prototype was for struct stpmic1_regulator_cfg instead.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7206
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Link: https://lore.kernel.org/r/20231109073925.98783-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Mark Brown <broonie@kernel.org>