icu: Use rtti on Android
icu: Use rtti on Android

shoreflyer/cerbero,shoreflyer/cerbero,EricssonResearch/cerbero,shoreflyer/cerbero,multipath-rtp/cerbero,multipath-rtp/cerbero,EricssonResearch/cerbero,EricssonResearch/cerbero,EricssonResearch/cerbero,multipath-rtp/cerbero,shoreflyer/cerbero,multipath-rtp/cerbero,EricssonResearch/cerbero,multipath-rtp/cerbero,shoreflyer/cerbero