trace_processor: always print out longs in decimal
trace_processor: always print out longs in decimal

It's very annoying to figure out whether a long is in hex or decimal and
also to constantly convert from hex back to decimal.

Always print in decimal.

Change-Id: Ib4598e6371ca2cf875f90067fa850b1b809a2309
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto