Changelog:
==========
-Corrected the interface for SimplePath to encompass the expectations of
locate_file and PackagePath.
-Fixed type annotations to allow strings.
(From OE-Core rev: f3a1975c1d94ca3286652c27c5b3fa711089b154)
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>