SMCF: Fix enablement of START and END sample identifiers in WRCFG
Created by: abhishek-arm
This change fixes the enablement of start and end sample identifiers. Currently if start sample identifier is already enabled and then end identifier is also requested, it results in WRCFG.NUM_SAMPLE_ID to be written with an invalid value 0b11 whereas the expected value as per specification is 0b10 to enable both START and END sample identifiers in data header.