Tools changes for open-power MRW and PERL 5.10

Change-Id: Iafb7010f11ca704c1d878b7f1e0eb12d6782901a
RTC: 108374
Update PNOR build script to handle two sides

Change-Id: I61db4d83ba8ea7ddc61c776625b43a07ee0039b0
RTC: 115870