Modify initCompiler to use FAPI_TRY in generated procedures

    -Update code generation to wrap getScom/putScom getSpy/putSpy
     calls in FAPI_TRY macro to save space and be consistient with
     the existing hwp procedure style.

Change-Id: I0e8a4c92c073443d109c504487db83de191edcd8
Original-Change-Id: I37975ec424b2b369cec200ddef8a05e650954c38
RTC:165557
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/33557
Tested-by: PPE CI <ppe-ci+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Joseph J. McGill <jmcgill@us.ibm.com>
Reviewed-by: Claus M. Olsen <cmolsen@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/64759
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Tested-by: Daniel M. Crowell <dcrowell@us.ibm.com>