FILS: Fix extended capability bit setting for FILS in AP mode
FILS capability bit setting could have ended up setting boths biths 72
(correct) and 64 (incorrect; part of Max Number of MSDUs In A-MSDU). Fix
this by adding the missing break to the switch statement.
Fixed: f55acd909e37 ("FILS: Set FILS Capability bit in management frames from AP")
Signed-off-by: Jouni Malinen <j@w1.fi>