ACPICA: Intepreter: Add object extensions to Concatenate operand

ACPICA commit 60d9cfd403a9824199b971597c930f6f563e5c71

Allows all object types to be used with Concatenate. Objects
other than Int/Str/Buf are convert to a string that contains
the type of the object. Improves the utility of the Printf
and Fprintf macros.

Adds a new file, exconcat.c

Link: https://github.com/acpica/acpica/commit/60d9cfd4


Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>