cmake/LinuxPackaging.cmake: Add libserialport to the list of dependencies that are being handled when creating Linux packages.
cmake/LinuxPackaging.cmake: Add libserialport to the list of dependencies
that are being handled when creating Linux packages.

Signed-off-by: Alexandra.Trifan <951af57c14d42c73475635752bd213fd996792b2@analog.com>

analogdevicesinc/libiio,analogdevicesinc/libiio,analogdevicesinc/libiio,analogdevicesinc/libiio