configs: stm32f746-disco: Fix SPL boot

Commit 'b4b9a00ed593 ("Convert CONFIG_SYS_SPL_ARGS_ADDR to Kconfig")'
replaces CONFIG_SYS_FDT_BASE by CONFIG_SYS_SPL_ARGS_ADDR.
As CONFIG_SYS_SPL_ARGS_ADDR enables additional code when enable, it
increases SPL size over the initial 0x8000 limit.
Increase the SPL size to 0x9000 to fix SPL boot.
Set SPL_SIZE_LIMIT to 0x9000 to avoid similar issue in the future.

Fixes 'b4b9a00ed593 ("Convert CONFIG_SYS_SPL_ARGS_ADDR to Kconfig")'

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Tested-by: Waldemar Brodkorb <wbx@openadk.org>
diff --git a/configs/stm32f746-disco_spl_defconfig b/configs/stm32f746-disco_spl_defconfig
index e7b1acc..5e8a8aaf 100644
--- a/configs/stm32f746-disco_spl_defconfig
+++ b/configs/stm32f746-disco_spl_defconfig
@@ -1,6 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARCH_STM32=y
-CONFIG_SYS_TEXT_BASE=0x08008000
+CONFIG_SYS_TEXT_BASE=0x08009000
 CONFIG_SYS_MALLOC_LEN=0x100000
 CONFIG_SYS_MALLOC_F_LEN=0xE00
 CONFIG_SPL_GPIO=y
@@ -13,10 +13,11 @@
 CONFIG_SYS_PROMPT="U-Boot > "
 CONFIG_SPL_SERIAL=y
 CONFIG_SPL_DRIVERS_MISC=y
+CONFIG_SPL_SIZE_LIMIT=0x9000
 CONFIG_STM32F7=y
 CONFIG_TARGET_STM32F746_DISCO=y
 CONFIG_SPL=y
-CONFIG_SYS_LOAD_ADDR=0x8008000
+CONFIG_SYS_LOAD_ADDR=0x8009000
 CONFIG_BUILD_TARGET="u-boot-with-spl.bin"
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
@@ -29,7 +30,7 @@
 CONFIG_BOOTARGS="console=ttyS0,115200 earlyprintk consoleblank=0 ignore_loglevel"
 # CONFIG_DISPLAY_CPUINFO is not set
 CONFIG_BOARD_LATE_INIT=y
-CONFIG_SPL_PAD_TO=0x8000
+CONFIG_SPL_PAD_TO=0x9000
 CONFIG_SPL_NO_BSS_LIMIT=y
 CONFIG_SPL_BOARD_INIT=y
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y