msm: ipa: Add error check while adding routing rule

Routing rule should not be installed on producer pipe.
If destination pipe is set as producer pipe then route
add will fail to avoid IPA HW data stall.

Change-Id: I5fb28851ac64410796b35514fe1f8ebff2c1a79f
Acked-by: Raj Kushwaha <rajnk@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>