sunxi: Set SYS_MALLOC_CLEAR_ON_INIT to n

We don't need this on sunxi, as we always use calloc or memset when
initialised memory is required. Clearing this shaves some time of our
boot time.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

board/sunxi/Kconfig

@@ -544,6 +544,9 @@ config GMAC_TX_DELAY
 	---help---
 	Set the GMAC Transmit Clock Delay Chain value.
 
+config SYS_MALLOC_CLEAR_ON_INIT
+	default n
+
 config NET
 	default y