watchdog: max77620: fix excess field in kerneldoc

The wdt_info does not exist in the struct being documented.

Reported-by: kernel test robot <[e-mail]>
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Signed-off-by: Luca Ceresoli <[e-mail]>
Reviewed-by: Guenter Roeck <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Guenter Roeck <[e-mail]>
Signed-off-by: Wim Van Sebroeck <[e-mail]>

drivers/watchdog/max77620_wdt.c

···
 
 /**
  * struct max77620_variant - Data specific to a chip variant
- * @wdt_info:            watchdog descriptor
  * @reg_onoff_cnfg2:     ONOFF_CNFG2 register offset
  * @reg_cnfg_glbl2:      CNFG_GLBL2 register offset
  * @reg_cnfg_glbl3:      CNFG_GLBL3 register offset