change(epicardium): Update to v1.16 splash screen

Also auto generate the header during build time.

epicardium/main.c

@@ -47,7 +47,7 @@ int main(void)
 
 	epic_disp_clear(0x0000);
 
-	if (strcmp(CARD10_VERSION, "v1.15") == 0) {
+	if (strcmp(CARD10_VERSION, "v1.16") == 0) {
 		gfx_copy_region(
 			&display_screen,
 			0,