llvm: include /usr/lib/libLLVM-*.so in lib package

/usr/lib/libLLVM-*.so was being split into the dev package but it should
be in the lib package otherwise software that depends on the LLVM shared
library will be unable to to locate it when the dev package isn't
installed.

Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>