Add CMake 3.9.0-rc3 to coreboot toolchain

Newer versions of clang will need newer versions of CMake (at least
3.4.3) to compile. This patch will enable us to switch to clang 4.0.

Change-Id: I6c91163ce0efd4eb2410cdb433de8be23d510ecd
Signed-off-by: Stefan Reinauer <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Philippe Mathieu-Daudé <>
Reviewed-by: Arthur Heymans <>
Reviewed-by: Patrick Georgi <>
Reviewed-by: Paul Menzel <>
2 files changed