arm: actions: remove "CONFIG_SYS_SDRAM_SIZE" for Actions Owl Semi SoCs
Now that, we calculate SDRAM size by reading DDR registers,
"CONFIG_SYS_SDRAM_SIZE" is no more needed.
This commit removes "CONFIG_SYS_SDRAM_SIZE" from common configuration
file.
Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>