MacPro7,1 memory configuration workaround is inadequate

[vit9696]

Guide: OpenCore Post Install Guide (link)

• Firstly, you can always use RestrictEvents. It is very simple and resolves the issue in an elegant way.
• Secondly, I checked the framework and discovered that you can provide proper empty slots by giving them NO DIMM value in Manufacturer field. See this update.

For the second route it is much better to just craft proper 4 sticks via CustomMemory than do what is advised. If you have just two sticks, you can make 4 halving the size of each.

[vit9696]

We included a sample memory config that suits the MacPro7,1 in SampleCustom.plist (https://github.com/acidanthera/OpenCorePkg/commit/bf2b7120d33003388f31b2f1689f9d4570eae80b).