msm: ipa: fix memory corruption during SSR cleanup

During modem SSR cleanup the filtering and routing tables pointers
are pointed to empty tables by sending immediate commands to IPA.
The number of allocated descriptors and commands was smaller than
the number of desciptors and commands that was used due to iterating
over the clients instead of the pipes, causing memory corruption due
to writing to memory that was not allocated.

CRs-fixed: 721164
Change-Id: I8bb5053a5e966be15452e5508efcb93a945301e6
Signed-off-by: Sivan Reinstein <sivanr@codeaurora.org>