wireless: fix several minor description typos

Signed-off-by: Walter Goldens <goldenstranger@yahoo.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 24cd54b..7d82f13b 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -666,7 +666,7 @@
 /**
  *  @brief Interpret a BSS scan response returned from the firmware
  *
- *  Parse the various fixed fields and IEs passed back for a a BSS probe
+ *  Parse the various fixed fields and IEs passed back for a BSS probe
  *  response or beacon from the scan command.  Record information as needed
  *  in the scan table struct bss_descriptor for that entry.
  *