volatile-test: Update test c files to use new syscall number and arguments

Update test to use current vrange syscall definition

Signed-off-by: John Stultz <john.stultz@linaro.org>
vrange-test: Add sigbus option and chunk output managed in page units

Add option flag to sigbus on purged pages.

Also output chunks in page units

Signed-off-by: John Stultz <john.stultz@linaro.org>