regulator: wm8350-regulator: Repair odd formatting in documentation

Kerneldoc expects function arguments to be in the format '@.*:'.  If
this format is not followed the kerneldoc tooling/parsers/validators
get confused.

Fixes the following W=1 warning(s):

 drivers/regulator/wm8350-regulator.c:1234: warning: Function parameter or member 'wm8350' not described in 'wm8350_register_led'
 drivers/regulator/wm8350-regulator.c:1234: warning: Function parameter or member 'lednum' not described in 'wm8350_register_led'
 drivers/regulator/wm8350-regulator.c:1234: warning: Function parameter or member 'dcdc' not described in 'wm8350_register_led'
 drivers/regulator/wm8350-regulator.c:1234: warning: Function parameter or member 'isink' not described in 'wm8350_register_led'
 drivers/regulator/wm8350-regulator.c:1234: warning: Function parameter or member 'pdata' not described in 'wm8350_register_led'
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200625163614.4001403-7-lee.jones@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/wm8350-regulator.c

@@ -1216,11 +1216,11 @@ EXPORT_SYMBOL_GPL(wm8350_register_regulator);
 /**
  * wm8350_register_led - Register a WM8350 LED output
  *
- * @param wm8350 The WM8350 device to configure.
- * @param lednum LED device index to create.
- * @param dcdc The DCDC to use for the LED.
- * @param isink The ISINK to use for the LED.
- * @param pdata Configuration for the LED.
+ * @wm8350: The WM8350 device to configure.
+ * @lednum: LED device index to create.
+ * @dcdc: The DCDC to use for the LED.
+ * @isink: The ISINK to use for the LED.
+ * @pdata: Configuration for the LED.
  *
  * The WM8350 supports the use of an ISINK together with a DCDC to
  * provide a power-efficient LED driver.  This function registers the