drm/i915/guc: Change wa and EU_PERF_CNTL registers to MCR type

Some of the wa registers are MCR register, and EU_PERF_CNTL registers
are MCR register.
MCR register needs extra process for read/write.
As normal MMIO register also could work with the MCR register process,
change all wa registers to MCR type for code simplicity.

Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240102010231.843778-1-shuicheng.lin@intel.com