Add reg file for PowerSimulateHiberBugcheck (#62)

Workaround for issue #7.

Author: idigdoug

drivers/whea_shutdown_fix/PowerSimulateHiberBugcheck.reg

@@ -0,0 +1,19 @@
+# Occasional WHEA crash during Windows shutdown
+
+Sometimes during system shutdown, the system will crash with a WHEA memory
+error.
+
+Issue partially understood:
+
+- Windows is trying to read from the ACPI FACS table.
+- For some reason, this triggers a memory read abort. (Exact root cause
+  unknown.)
+- The same issue has been reported on other boards, so it's not specific to
+  RK3588.
+
+Workaround:
+
+- Add a DWORD registry value PowerSimulateHiberBugcheck set to 0x40 to registry
+  key `HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager`.
+
+You can use the `PowerSimulateHiberBugcheck.reg` file to do this.