Update gdb to 7.11 and expat to 2.1.1
riscv64-elf is still broken.
Change-Id: Id7605f4274fcb15f9c3e366f5c492328f70f7956
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14461
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>