Add firmware throttle patch

Closes https://github.com/dortania/OpenCore-Legacy-Patcher/issues/555

resources/build.py

@@ -722,6 +722,11 @@ class BuildOpenCore:
             self.get_item_by_kv(self.config["Kernel"]["Patch"], "Identifier", "com.apple.filesystems.apfs")["Enabled"] = True
             # Lets us check in sys_patch.py if config supports FileVault
             self.config["NVRAM"]["Add"]["4D1FDA02-38C7-4A6A-9CC6-4BCCA8B30102"]["OCLP-Settings"] += " -allow_fv"
+        if self.constants.disable_msr_power_ctl is True and self.model.startswith("MacBook"):
+            print("- Disabling Battery Throttling")
+            if smbios_data.smbios_dictionary[self.model]["CPU Generation"] >= cpu_data.cpu_data.nehalem.value:
+                # Nehalem and newer MacBooks force firmware throttling via MSR_POWER_CTL
+                self.enable_kext("SimpleMSR.kext", self.constants.simplemsr_version, self.constants.simplemsr_path)
         if self.get_kext_by_bundle_path("RestrictEvents.kext")["Enabled"] is False:
             # Ensure this is done at the end so all previous RestrictEvents patches are applied
             # RestrictEvents and EFICheckDisabler will confilict if both are injected