riscv: Improve Kconfig help for RISCV_ISA_V_PREEMPTIVE

	default y

	help

	  Usually, in-kernel SIMD routines are run with preemption disabled.

	  Functions which envoke long running SIMD thus must yield core's

	  Functions which invoke long running SIMD thus must yield the core's

	  vector unit to prevent blocking other tasks for too long.

	  This config allows kernel to run SIMD without explicitly disable

	  preemption. Enabling this config will result in higher memory

	  consumption due to the allocation of per-task's kernel Vector context.

	  This config allows the kernel to run SIMD without explicitly disabling

	  preemption. Enabling this config will result in higher memory consumption

	  due to the allocation of per-task's kernel Vector context.

config RISCV_ISA_ZAWRS

	bool "Zawrs extension support for more efficient busy waiting"