PRODINFO: Revamp blanking/write disallow policy. (#913)

* exo/fusee: hookup new prodinfo settings

* fusee: new scheme doesn't need FLAGS_DEFAULT

* fusee: fix c/p errors

* ams.mitm: completely revamp prodinfo backup mechanism

* ams.mitm: Implement revamped blanking/write policy

* strat: make early boot more debuggable

* exo: condense flag logic

stratosphere/boot/source/boot_power_utils.cpp

@@ -67,6 +67,10 @@ namespace ams::boot {
         DoRebootToPayload(nullptr);
     }
 
+    void SetInitialRebootPayload() {
+        ::ams::SetInitialRebootPayload(fusee_primary_bin, fusee_primary_bin_size);
+    }
+
     void RebootForFatalError(ams::FatalErrorContext *ctx) {
         DoRebootToPayload(ctx);
     }