hos: add missing deinit

bootloader/hos/hos.c

@@ -802,6 +802,7 @@ int hos_launch(ini_sec_t *cfg)
 		// Check if stock is enabled and device can boot in OFW.
 		if (ctxt.stock && (h_cfg.t210b01 || !tools_autorcm_enabled()))
 		{
+			sdram_src_pllc(false);
 			emmc_end();
 
 			WPRINTF("\nRebooting to OFW in 5s...");