crossgcc/buildgcc: Remove unneeded 'break' statements

Bash case statements are terminated with ';;'.

Unlike C, bash case statements will not continue to the next case. No 'break' is needed.

Change-Id: I62e7e91f3223ac4052728a1ca12a4681af0dc036
Signed-off-by: David Hubbard <david.c.hubbard+coreboot@gmail.com>
Reviewed-on: http://review.coreboot.org/3330
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed