drm/amd/display: Reorder dc_state fields to optimize clearing the struct

[why & how]
By moving bw_ctx field to the end of the dc_state the state can be
cleared more efficiently without resulting in large DML memcpy
operations, resulting in better mode enumeration performance on some
platforms.
Acked-by: NAurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: NAric Cyr <aric.cyr@amd.com>
Reviewed-by: NNevenko Stupar <Nevenko.Stupar@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/inc/core_types.h

@@ -546,15 +546,6 @@ struct dc_state {
 	 */
 	struct resource_context res_ctx;
 
-	/**
-	 * @bw_ctx: The output from bandwidth and watermark calculations and the DML
-	 *
-	 * Each context must have its own instance of VBA, and in order to
-	 * initialize and obtain IP and SOC, the base DML instance from DC is
-	 * initially copied into every context.
-	 */
-	struct bw_context bw_ctx;
-
 	/**
 	 * @pp_display_cfg: PowerPlay clocks and settings
 	 * Note: this is a big struct, do *not* put on stack!
@@ -569,6 +560,15 @@ struct dc_state {
 
 	struct clk_mgr *clk_mgr;
 
+	/**
+	 * @bw_ctx: The output from bandwidth and watermark calculations and the DML
+	 *
+	 * Each context must have its own instance of VBA, and in order to
+	 * initialize and obtain IP and SOC, the base DML instance from DC is
+	 * initially copied into every context.
+	 */
+	struct bw_context bw_ctx;
+
 	/**
 	 * @refcount: refcount reference
 	 *