Use python "time" module, rather than shell command, to print ISTEP status
Use python "time" module, rather than shell command, to print ISTEP status

This commit changes our MAGIC_PRINT_ISTEP handler to use the native
python "time" module to print the time, rather than a shell command,
in an effort to reduce memory consumption for CI runs.

This commit also rewrites print statements into python 3-compatible
syntax.

Change-Id: Ic6d1a75f489619bd1e890d6aab97b2f87010c80c
CQ: SW513427
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/111240
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Reviewed-by: CALEB SCHLOSSIN <262c9f64c08ebbb6ab2fa9270a6fe103cb4919af@us.ibm.com>
Tested-by: FSP CI Jenkins <aa9e4d9ac7cd25905e9c0dd36d4150516e73dd86@us.ibm.com>
Reviewed-by: Ilya Smirnov <2c7a6ec38cfb553b896499595cca9c656159f2a4@us.ibm.com>
Tested-by: Jenkins OP Build CI <e610bd72261d3c0a48f1e8ae36832ab00774d426@us.ibm.com>
Tested-by: Jenkins OP HW <0eb0fff262f74a65a832afbcc7b153e391c9a3fd@us.ibm.com>
Tested-by: Jenkins Combined Simics CI <8312af3886dfc9bb930f549023677220805b137e@us.ibm.com>
Tested-by: Hostboot CI <52521565bd8ea18a2b112942dce4f4220a97c2c8@us.ibm.com>
Reviewed-by: Matt Derksen <7e9f2fc2ed13c4ee3c2ab17f188630a0f557de86@us.ibm.com>
Reviewed-by: Daniel M Crowell <912029ca9254ac7b5854e56910561d682e1fa2d0@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot