Fix the size of type timing
Fix the size of type timing

The timebase register is 64-bit wide both in 32 and in 64 bits modes.
Using a 32-bit type will have a huge impact on the timebase value.

tfauck/paflib,tfauck/paflib,sinnykumari/paflib,sinnykumari/paflib,paflib/paflib,sinnykumari/paflib,paflib/paflib,tfauck/paflib,paflib/paflib