imagemagick/lcms/fftw: Allow nativesdk versions to exist
These allow the use of imagemagick in SDKs where it is useful to perform
image analysis such as on the autobuilder for screenshot processing
during QA testing.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>