Reduce the line of logs in below functions and log friendly.
  o intel_vgpu_reg_imr_handler
  o intel_vgpu_reg_master_irq_handler
  o intel_vgpu_reg_ier_handler
  o intel_vgpu_reg_iir_handler
Signed-off-by: NChangbin Du <changbin.du@intel.com>
Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>