some formatting changes, and update how I do bitfields for HPSTATE and PSTATE to...

some formatting changes, and update how I do bitfields for HPSTATE and PSTATE to avoid name confusion.

src/arch/sparc/faults.cc:
    1) s/Resumeable/Resumable/gc
    2) s/if(/if (/gc
    3) keep variables lowercase
    4) change the way fields are accessed - instead of hard coding bitvectors, use masks (like HPSTATE::hpriv).
src/arch/sparc/faults.hh:
    s/Resumeable/Resumable/
src/arch/sparc/isa_traits.hh:
    This is unused and unnecessary.
src/arch/sparc/miscregfile.hh:
    add bitfield masks for some important ASRs (HPSTATE, PSTATE).

--HG--
extra : convert_revision : f0ffaf48de298758685266dfb90f43aff42e0a2c