doc: add bus libraries to release notes
doc: add bus libraries to release notes

Fixes: 919eeaccb2ba ("bus/dpaa: introduce NXP DPAA bus driver skeleton")
Fixes: 7e7df6d0a41d ("bus/fslmc: introduce fsl-mc bus driver")
Fixes: c752998b5e2e ("pci: introduce library and driver")

Signed-off-by: Thomas Monjalon <5f50a84c1fa3bcff146405017f36aec1a10a9e38@monjalon.net>

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