power: supply: act8945a: correct kerneldoc

Remove incorrect kerneldoc marker to fix W=1 warning:

  drivers/power/supply/act8945a_charger.c:22: warning:
    This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/act8945a_charger.c

@@ -18,7 +18,7 @@
 static const char *act8945a_charger_model = "ACT8945A";
 static const char *act8945a_charger_manufacturer = "Active-semi";
 
-/**
+/*
  * ACT8945A Charger Register Map
  */