PE 01 Enabling last few registers

[ajayswar-s]

• Enabling ID_MMFR4_El1, PMSIDR_EL1, ERRIDR_EL1, LORID_EL1, ID_AA64MMFR2_EL1
• Removing ERRFR_EL1 which depends on MMIO access

Change-Id: Ifc40d6fe9377b8c3e476f1e562523c5f487c91ff

[chetan-rathore]

Changes for #308

This change enables the registers which are mentioned in reg array of test, but were not executing either to due commented out or NUM_OF_REGISTERS macro value was lesser than number of array entries.

RAS ERR feature Register checks requires more investigation and will be added as part of #318 changes