During LOG_*() macro expansions, XCC expands everything even though
IS_ENABLED() is used. This resulting in various log*() functions
(e.g. log_0(), log_1(), etc.) being required for linking. However,
when CONFIG_LOG_MINIMAL=y, those functions are not compiled from
the logging subsystem. Therefore, to get past the linking error,
dummy versions are being provided.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>