fat: use prandom_u32() for i_generation

Similar to commit 46c9a946d766 ("shmem: use monotonic time for i_generation")
we should not use the deprecated get_seconds() interface for i_generation.

prandom_u32() is the replacement used in other file systems.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1 file changed