ipw2x00: Minor documentation update

Kernel test robot throws below warning ->

drivers/net/wireless/intel/ipw2x00/ipw2100.c:5359: warning: This comment
starts with '/**', but isn't a kernel-doc comment. Refer
Documentation/doc-guide/kernel-doc.rst

Minor update in documentation.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1619347842-6638-1-git-send-email-jrdr.linux@gmail.com

drivers/net/wireless/intel/ipw2x00/ipw2100.c

@@ -5356,7 +5356,7 @@ struct ipw2100_wep_key {
 #define WEP_STR_128(x) x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10]
 
 /**
- * Set a the wep key
+ * ipw2100_set_key() - Set a the wep key
  *
  * @priv: struct to work on
  * @idx: index of the key we want to set