[DLScript] fixed android builds now

... really.

drivers/unix/os_unix.cpp

@@ -453,7 +453,7 @@ Error OS_Unix::close_dynamic_library(void *p_library_handle) {
 }
 
 Error OS_Unix::get_dynamic_library_symbol_handle(void *p_library_handle, const String p_name, void *&p_symbol_handle) {
-	char *error;
+	const char *error;
 	dlerror(); // Clear existing errors
 
 	p_symbol_handle = dlsym(p_library_handle, p_name.utf8().get_data());

modules/dlscript/godot/godot_string.cpp

@@ -3,7 +3,7 @@
 #include "string_db.h"
 #include "ustring.h"
 
-#include <memory.h>
+#include <string.h>
 
 #ifdef __cplusplus
 extern "C" {