sfc:falcon: fix repeated words in comments

Delete the redundant word 'in'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/sfc/falcon/bitfield.h

@@ -117,7 +117,7 @@ typedef union ef4_oword {
  *
  *   ( element ) << 4
  *
- * The result will contain the relevant bits filled in in the range
+ * The result will contain the relevant bits filled in the range
  * [0,high-low), with garbage in bits [high-low+1,...).
  */
 #define EF4_EXTRACT_NATIVE(native_element, min, max, low, high)		\