Add BOARD_BROKEN_NINJA_ENV_VARS to BoardConfig.mk.

Soong needs access to sdclang variables during Ninja execution. Ninja
now limits the default set of variables so add the needed ones back via
the Make variable.

To build the kernel (and other uses of make), we also need to allow
TEMPORARY_DISABLE_PATH_RESTRICTIONS.

Change-Id: I1056bb73cc2f8796ed941b5dd7b333ef15c60891
1 file changed