Don't log PII when launching intents with "sms:" or "sip:" URIs

We were already redacting phone numbers from "tel:" and "smsto:" URIs.

Now, do that for "sms:" and "sip:" too, since those schemes are equally
likely to contain PII in the scheme-specific part.

TESTED: Received incoming call; selected "Respond via SMS" -> "Custom
        message"; confirmed no PII in the system log.

Bug: 5244735
Change-Id: If2444c8901249aac9fd8e6b809d6da01db2e27c1