MAINTAINERS / ACPI: Update links and git tree information
MAINTAINERS / ACPI: Update links and git tree information

Update the ACPI subsystem's git tree and Web links in the
MAINTAINERS file.

Signed-off-by: Rafael J. Wysocki <27ffc44a8ec6a212fba98cfc3246c6ce8ab131e0@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs