reset: sti: reset-syscfg: fix struct description warnings

Fix formating of struct description to avoid warning highlighted
by W=1 compilation.

Fixes: e5d7607 ("drivers: reset: STi SoC system configuration reset controller support")
Signed-off-by: Alain Volmat <avolmat@me.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Author: Alain Volmat

drivers/reset/sti/reset-syscfg.c

@@ -17,7 +17,7 @@
 #include "reset-syscfg.h"
 
 /**
- * Reset channel regmap configuration
+ * struct syscfg_reset_channel - Reset channel regmap configuration
  *
  * @reset: regmap field for the channel's reset bit.
  * @ack: regmap field for the channel's ack bit (optional).
@@ -28,8 +28,9 @@ struct syscfg_reset_channel {
 };
 
 /**
- * A reset controller which groups together a set of related reset bits, which
- * may be located in different system configuration registers.
+ * struct syscfg_reset_controller - A reset controller which groups together
+ * a set of related reset bits, which may be located in different system
+ * configuration registers.
  *
  * @rst: base reset controller structure.
  * @active_low: are the resets in this controller active low, i.e. clearing