sdk_dpaa: memset local configuration structures before filling them

sdk_dpaa: memset local configuration structures before filling them

Zero-out local configuration structures before filling them up and
passing them to the QMan. In most scenarios, there is no need to fill up
all fields so some random data might linger. This avoids sending potentially
random data to the QMan.

Applies to congestions groups, class congestion groups and fq
initialization.

Signed-off-by: Camelia Groza <camelia.groza@nxp.com>