CMake:	Update the CMake with CPack, so build up nightly deb and rpms
CMake:	Update the CMake with CPack, so build up nightly deb and rpms

Signed-off-by: Robin Getz <c66e5a86ef9317cf35cecb2ed063996b2100ed4b@analog.com>

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