Change from int to long for values that represent sizes in bit

Change from int to long for values that represent sizes in bit

This fixes parsing of traces with big packets, whose size in bits
overflow an 32-bit int.

Change-Id: I5d2d1ede73e638bdd2a3e5b38a5ee2a053fa5d3a
Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Reviewed-on: https://git.eclipse.org/r/17422
Reviewed-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
Tested-by: Hudson CI
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
IP-Clean: Matthew Khouzam <matthew.khouzam@ericsson.com>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>