make some squeezelite symbol weak to force removal from recovery during link

components/platform_console/app_recovery/recovery.c

@@ -30,8 +30,19 @@ const __attribute__((section(".rodata_desc"))) esp_app_desc_t esp_app_desc = {
 int main(int argc, char **argv){
 	return 1;
 }
+
 void register_squeezelite(){
 }
+
+void register_external(void) {
+}
+
+void deregister_external(void) {
+}
+
+void decode_restore(int external) {
+}
+
 esp_err_t start_ota(const char * bin_url, char * bin_buffer, uint32_t length)
 {
 		return process_recovery_ota(bin_url,bin_buffer,length);