move encodeException to non-updatable framework/base/telephony/common

Bug: 140908357
Test: Build
Change-Id: I9be6b41fe4af0eb4eb56debffc020735509dc407
(cherry picked from commit 3a7dfca8db0185ce0683e22c11b7906215a96a51)
Merged-in: I9be6b41fe4af0eb4eb56debffc020735509dc407
1 file changed