nyx: make sure ram is set to 1600 MHz

No matter how Nyx was launched.

nyx/nyx_gui/nyx.c

@@ -475,6 +475,7 @@ void nyx_init_load_res()
 
 	// Train DRAM and switch to max frequency.
 	minerva_init((minerva_str_t *)&nyx_str->minerva);
+	minerva_change_freq(FREQ_1600);
 
 	// Load hekate/Nyx configuration.
 	_load_saved_configuration();