rsi: Fixed the kernel doc

Changed the function header to match the function name.
Signed-off-by: NJahnavi Meher <jahnavi.meher@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rsi/rsi_91x_mac80211.c

@@ -185,7 +185,7 @@ static void rsi_register_rates_channels(struct rsi_hw *adapter, int band)
 }
 
 /**
- * rsi_mac80211_attach() - This function is used to de-initialize the
+ * rsi_mac80211_detach() - This function is used to de-initialize the
  *			   Mac80211 stack.
  * @adapter: Pointer to the adapter structure.
  *