board: STiH410-B2260: update environment variable

Update environment variable by updating:
 _ BOOT_TARGET_DEVICE
 _ CONFIGS_BOOTARGS
 _ kernel_addr_r, fdtfile, fdt_addr_r, scriptaddr, fdt_high, intird_high

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/stih410-b2260_defconfig b/configs/stih410-b2260_defconfig
index 4b41b6b..d4aa4f3 100644
--- a/configs/stih410-b2260_defconfig
+++ b/configs/stih410-b2260_defconfig
@@ -6,7 +6,7 @@
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttyS0,115200 earlyprintk consoleblank=0 ignore_loglevel"
+CONFIG_BOOTARGS="console=ttyAS1,115200 CONSOLE=/dev/ttyAS1 consoleblank=0 root=/dev/mmcblk0p2 rootfstype=ext4 rw rootwait mem=992M@0x40000000 vmalloc=256m"
 # CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_SYS_PROMPT="stih410-b2260 => "
 CONFIG_FASTBOOT=y