arm: armada: configs: Move environment location for mvebu

Move the default environment location to the end of 4MB flash
region. This change allows to accomodate larger flash boot
images making space for forthcoming code changes.
Signed-off-by: NKonstantin Porotchkin <kostap@marvell.com>
Signed-off-by: NStefan Roese <sr@denx.de>

configs/mvebu_db-88f3720_defconfig

@@ -6,7 +6,7 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_TARGET_MVEBU_ARMADA_37XX=y
 CONFIG_ENV_SIZE=0x10000
-CONFIG_ENV_OFFSET=0x180000
+CONFIG_ENV_OFFSET=0x3f0000
 CONFIG_ENV_SECT_SIZE=0x10000
 CONFIG_DM_GPIO=y
 CONFIG_DEBUG_UART_BASE=0xd0012000

configs/mvebu_db_armada8k_defconfig

@@ -6,7 +6,7 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_NR_DRAM_BANKS=2
 CONFIG_TARGET_MVEBU_ARMADA_8K=y
 CONFIG_ENV_SIZE=0x10000
-CONFIG_ENV_OFFSET=0x180000
+CONFIG_ENV_OFFSET=0x3f0000
 CONFIG_ENV_SECT_SIZE=0x10000
 CONFIG_DEBUG_UART_BASE=0xf0512000
 CONFIG_DEBUG_UART_CLOCK=200000000