raw/dpaa2_cmdif: add attribute get functionality
raw/dpaa2_cmdif: add attribute get functionality

Signed-off-by: Nipun Gupta <4871fd67344c57328097f2fd932ad9a0f1f1fe74@nxp.com>
Acked-by: Shreyansh Jain <9744844f062a9f6cf95f66f06508da54c8fc7929@nxp.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk