* Package names are actually case sensitive near as I can tell, so we
shouldn't be lowercasing them everywhere.
* Look for CMake packages in pkgdata and map those back to recipes,
so we aren't dependent on the hardcoded mappings (though those are
still preserved).
* Avoid duplicates in the unmapped package list
(From OE-Core rev: 2ddad52ccca07245eea43d9b844c6c7d4b667ca3)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>