arm: mvebu: turris_omnia: update defconfig

Add Macronis SPI flash support - some Omnia routers are shipped with
this SPI flash chip.
Also add the memtest command to defconfig.

Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/configs/turris_omnia_defconfig b/configs/turris_omnia_defconfig
index e7ece9e..17740b9 100644
--- a/configs/turris_omnia_defconfig
+++ b/configs/turris_omnia_defconfig
@@ -45,6 +45,8 @@
 CONFIG_CMD_AES=y
 CONFIG_CMD_HASH=y
 CONFIG_CMD_BTRFS=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_SYS_ALT_MEMTEST=y
 # CONFIG_SPL_PARTITION_UUIDS is not set
 CONFIG_DEFAULT_DEVICE_TREE="armada-385-turris-omnia"
 CONFIG_ENV_IS_IN_SPI_FLASH=y
@@ -60,6 +62,7 @@
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_MV=y
 CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_PHY_MARVELL=y
 CONFIG_PHY_GIGE=y