[qca-nss-drv]: Supporting dynamic intf on NSS

Added support to dynamically allocate and deallocate interfaces on NSS.
Alloc and Dealloc nodes are blocking calls, ie waits till we get the ACK back.

Change-Id: I4abaa026d76cf2c864297dc57a9256db84d58bbd
Signed-off-by: Ankit Dhanuka <adhanuka@codeaurora.org>
9 files changed