Revert "exynos: also disable TZPC init"

By default, all components in the SoC are secure-world only.
If we want to use DMA to access any of these (like UART, etc.)
then we need to mark them as non-secure, since the peripheral pl330s are
non-secure only.

This reverts commit a91abc5.

Author: fourkbomb

arch/arm/mach-exynos/lowlevel_init.c

@@ -223,7 +223,7 @@ int do_lowlevel_init(void)
 #endif
 #endif
 		mem_ctrl_init(actions & DO_MEM_RESET);
-		//tzpc_init();
+		tzpc_init();
 	}
 
 	return actions & DO_WAKEUP;