misc: pch_phub: Remove superfluous descriptions to non-existent args 'offset_address'

Probably a copy 'n' paste error, 'offset_address' has never been
part of the pch_phub_{read,write}_gbe_mac_addr() functions.

Squashes the following W=1 warnings:

drivers/misc/pch_phub.c:450: warning: Excess function parameter 'offset_address' description in 'pch_phub_read_gbe_mac_addr'
drivers/misc/pch_phub.c:462: warning: Excess function parameter 'offset_address' description in 'pch_phub_write_gbe_mac_addr'

Cc: Masayuki Ohtak <[e-mail]>
Cc: Tomoya MORINAGA <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/misc/pch_phub.c

···
 
 /**
  * pch_phub_read_gbe_mac_addr() - Read Gigabit Ethernet MAC address
- * @offset_address:	Gigabit Ethernet MAC address offset value.
  * @chip:		Pointer to the PHUB register structure
  * @data:		Buffer of the Gigabit Ethernet MAC address value.
  */
···
 
 /**
  * pch_phub_write_gbe_mac_addr() - Write MAC address
- * @offset_address:	Gigabit Ethernet MAC address offset value.
  * @chip:		Pointer to the PHUB register structure
  * @data:		Gigabit Ethernet MAC address value.
  */