[qca-nss-drv] Add new APIs for type specific msg init

Add new APIs for type specific msg init which inturn would
call the nss_cmn_msg_init().

Change-Id: I8cad8d3f69beef5c968b1bd09810916bbe9fc80f
Signed-off-by: Sundarajan Srinivasan <sundaraj@codeaurora.org>
27 files changed