Use legacy files and propertys of the ramdump domain for redbull.

After ag/26798030 and ag/26620507, we keep the hardware/google/pixel-sepolicy/ramdump/common sepolicy settings of the ramdump domain for redbull.

Bug: 298102808
Design: go/sys-software-logging
Test: Manual
Change-Id: I77c64e865f68f9fb86eac85e8798fc7ec8aa2d6d