drm/amd/display: trivial comment change

FP guard is valid for all recent asics, not just RV, so fix the comment.
Reviewed-by: Chaitanya Dhere <chaitanya.dhere@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c

@@ -368,7 +368,7 @@ struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *p
 	}
 	break;
 
-#endif /* CONFIG_DRM_AMD_DC_FP - Family RV */
+#endif	/* CONFIG_DRM_AMD_DC_FP */
 	default:
 		ASSERT(0); /* Unknown Asic */
 		break;