wifi: b43: fix repeated words in comments

Delete the redundant word 'early'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220709133119.21076-1-yuanjilin@cdjrlc.com

drivers/net/wireless/broadcom/b43/phy_common.h

@@ -88,7 +88,7 @@ enum b43_txpwr_result {
  * 			initialized here.
  * 			Must not be NULL.
  * @prepare_hardware:	Prepare the PHY. This is called before b43_chip_init to
- * 			do some early early PHY hardware init.
+ * 			do some early PHY hardware init.
  * 			Can be NULL, if not required.
  * @init:		Initialize the PHY.
  * 			Must not be NULL.