msm: ipa: Fix to validate routing table index for filter exception

Fix to validate routing table index for filter action
IPA_PASS_TO_EXCEPTION case to avoid ipa assert
during commit filter rule.

Change-Id: I957f7ffc415ea1a042f6b3a948e94410d41b2262
Acked-by: Ashok Vuyyuru <avuyyuru@qti.qualcomm.com>
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>