imx6: sabrelite: update defconfig to use distro defaults

Boot tested with boot.scr script and EFI/Grub2 on mmc0 and mmc1 slots on sabrelite board.
Signed-off-by: NGuillaume GARDET <guillaume.gardet@free.fr>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Gary Bisson <gary.bisson@boundarydevices.com>

configs/mx6qsabrelite_defconfig

@@ -3,36 +3,31 @@ CONFIG_ARCH_MX6=y
 CONFIG_SYS_TEXT_BASE=0x17800000
 CONFIG_TARGET_NITROGEN6X=y
 CONFIG_CMD_HDMIDETECT=y
+CONFIG_DISTRO_DEFAULTS=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6q.cfg,MX6Q,DDR_MB=1024,SABRELITE"
 CONFIG_BOOTDELAY=3
+# CONFIG_USE_BOOTCOMMAND is not set
 CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
-CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_BOARD_EARLY_INIT_F=y
-CONFIG_HUSH_PARSER=y
 CONFIG_FASTBOOT=y
 CONFIG_FASTBOOT_BUF_ADDR=0x12000000
-CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_MEMTEST=y
 CONFIG_SYS_ALT_MEMTEST=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPT=y
+# CONFIG_RANDOM_UUID is not set
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_SATA=y
 CONFIG_CMD_SF=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
-CONFIG_CMD_DHCP=y
-CONFIG_CMD_MII=y
-CONFIG_CMD_PING=y
 CONFIG_CMD_BMP=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_TIME=y
-CONFIG_CMD_EXT2=y
-CONFIG_CMD_EXT4=y
 CONFIG_CMD_EXT4_WRITE=y
-CONFIG_CMD_FAT=y
-CONFIG_CMD_FS_GENERIC=y
+# CONFIG_ISO_PARTITION is not set
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_DM=y
 CONFIG_DWC_AHSATA=y