drm/i915/xelpg: Fix write to MTL_MCR_SELECTOR

A misplaced closing parenthesis caused the groupid/instanceid values to
be considered part of the ternary operator's condition instead of being
OR'd into the resulting value.

Fixes: f32898c9 ("drm/i915/xelpg: Add multicast steering")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221019222437.3035182-1-matthew.d.roper@intel.com

drivers/gpu/drm/i915/gt/intel_gt_mcr.c

@@ -249,7 +249,7 @@ static u32 rw_with_mcr_steering_fw(struct intel_uncore *uncore,
 		intel_uncore_write_fw(uncore, MTL_MCR_SELECTOR,
 				      REG_FIELD_PREP(MTL_MCR_GROUPID, group) |
 				      REG_FIELD_PREP(MTL_MCR_INSTANCEID, instance) |
-				      (rw_flag == FW_REG_READ) ? GEN11_MCR_MULTICAST : 0);
+				      (rw_flag == FW_REG_READ ? GEN11_MCR_MULTICAST : 0));
 	} else if (GRAPHICS_VER(uncore->i915) >= 11) {
 		mcr_mask = GEN11_MCR_SLICE_MASK | GEN11_MCR_SUBSLICE_MASK;
 		mcr_ss = GEN11_MCR_SLICE(group) | GEN11_MCR_SUBSLICE(instance);