HSD #14015950233: arm64: configs: enable HW_RANDOM as kernel module

commit 457737dcc8fb11818db8b5dae068f0d48c07430f from
https://github.com/altera-opensource/linux-socfpga.git



Enable hardware random number generator as a loadable module.

CONFIG_HW_RANDOM=m

This kernel config is only required by Intel's n5x platform.
Change it to module so the hardware random number generator
will only initialize on demand.
When this driver is build-in to other platform eg, Agilex, it
will introduce a long start job and cause timeout error while
waiting for SMC call during boot up if the SVC firmware is not
ready.

Fixes: 6153ec6352e4c0 ("HSD #22013011814: crypto: intel_fcs: support HWRNG via /dev/hwrng")
Signed-off-by: Teoh, Ji Sheng <ji.sheng.teoh@intel.com>
Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>