Enable SAM on Polaris.reg

Windows Registry Editor Version 5.00

;来源，https://www.reddit.com/r/Amd/comments/v553tn/help_w_smart_access_memory/

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000]
"KMD_EnableRebarForLegacyASIC"=dword:00000001
"KMD_RebarControlMode"=dword:00000001
"KMD_RebarControlSupport"=dword:00000001