cross-localedef-native: add way to specify which locale archive to write
localedef has no way to specify which locale archive to use, and the
compile-time default isn't useful as it points to the work directory.
Add support to read an environmental variable for the path, and don't fail to
write a new locale archive.
(From OE-Core rev:
bf0f205a3c3714926649bd69db29e4df1c0ea112)
(From OE-Core rev:
38b0e8d9b1944a955e4ed682184dafdce20db4b9)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
