omap: zoom2: update defconfig for LL_DEBUG_NONE

Update DEBUG_LL for zoom2 board as CONFIG_OMAP_LL_DEBUG_NONE
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/configs/omap_zoom2_defconfig

@@ -202,7 +202,8 @@ CONFIG_OMAP_32K_TIMER_HZ=128
 CONFIG_OMAP_DM_TIMER=y
 # CONFIG_OMAP_LL_DEBUG_UART1 is not set
 # CONFIG_OMAP_LL_DEBUG_UART2 is not set
-CONFIG_OMAP_LL_DEBUG_UART3=y
+# CONFIG_OMAP_LL_DEBUG_UART3 is not set
+CONFIG_OMAP_LL_DEBUG_NONE=y
 CONFIG_ARCH_OMAP34XX=y
 CONFIG_ARCH_OMAP3430=y