Fix this sparse warnings:
  drivers/net/wireless/airo.c:2102:21: warning: incorrect type in initializer (different signedness)
  drivers/net/wireless/airo.c:2126:21: warning: incorrect type in initializer (different signedness)
  drivers/net/wireless/airo.c:2167:21: warning: incorrect type in initializer (different signedness)
  drivers/net/wireless/airo.c:2191:21: warning: incorrect type in initializer (different signedness)
Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
           use the high bit to mark whether it is in use. */
 #define MAX_FIDS 6
 #define MPI_MAX_FIDS 1
-       int                           fids[MAX_FIDS];
+       u32                           fids[MAX_FIDS];
        ConfigRid config;
        char keyindex; // Used with auto wep
        char defindex; // Used with auto wep