v0.2.0 spec additions for E40S/X

Created by: eroom1966

@Silabs-ArjanB @MikeCovrado Hi Mike, Arjan, This is the first commit of the features added for the v0.2.0 specification Please be aware that the model variant selected in uvmt_cv32e40s_iss_wrap.sv is actually the previous version to match the existing RTL. This would need to change to variant CV32E40S_V0.2.0, as per the provided PDF document variant

Please refer to the variant specific document OVP_Model_Specific_Information_openhwgroup_riscv_CV32E40S_V0_2_0.pdf