ARM: da850evm: Increase Malloc Size

The SPI NOR frameware was recently updated, but they require a little
more memory that we had previosly allocated, so it stopped booting.
This patch doubles the size of CONFIG_SPL_SYS_MALLOC_F_LEN to 0x800.

Fixes: c4e8862308d4 ("mtd: spi: Switch to new SPI NOR framework")

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/configs/da850_am18xxevm_defconfig b/configs/da850_am18xxevm_defconfig
index 58745fe..4192241 100644
--- a/configs/da850_am18xxevm_defconfig
+++ b/configs/da850_am18xxevm_defconfig
@@ -6,6 +6,7 @@
 CONFIG_TI_COMMON_CMD_OPTIONS=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SYS_MALLOC_F_LEN=0x800
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL=y
 CONFIG_SPL_SPI_FLASH_SUPPORT=y