exo/mariko fatal: print descriptor for fatal error report

exosphere/mariko_fatal/source/fatal_display.hpp

@@ -18,6 +18,10 @@
 
 namespace ams::secmon::fatal {
 
+    constexpr inline size_t FrameBufferHeight = 768;
+    constexpr inline size_t FrameBufferWidth  = 1280;
+    constexpr inline size_t FrameBufferSize   = FrameBufferHeight * FrameBufferWidth * sizeof(u32);
+
     void InitializeDisplay();
     void ShowDisplay(const ams::impl::FatalErrorContext *f_ctx, const Result save_result);
     void FinalizeDisplay();