arm: zynq: Removed CONFIG_SYS_MALLOC_LEN for mini configuration
This patch removed CONFIG_SYS_MALLOC_LEN from the header file as it
was already handled through Kconfig. During nand write operation,
CONFIG_SYS_MALLOC_LEN defined in header file was giving End of Memory
error.
nand write is working fine with the CONFIG_SYS_MALLOC_LEN defined
in cse_nand defconfig.
Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>