Linux scripts: Make AcpiSrc utility compile optional.

The enhancement of AcpiSrc generation per-commit could not meet
all requirements of the monthly ACPICA -> Linux release process.
This patch allows the per-commit generation to be selected by the
users. Lv Zheng.
AcpiSrc: Add new table structures into conversion table

The new RASF/VRTC/MTMR table structures are added to the
conversion to allow proper patches generated for Linux.
Lv Zheng.