drm/i915/psr: Set SU area width as pipe src width

Currently SU area width is set as MAX_INT. This is causing
problems. Instead set it as pipe src width.

Fixes: 86b26b6a ("drm/i915/psr: Carry su area in crtc_state")
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240618053026.3268759-2-jouni.hogander@intel.com

drivers/gpu/drm/i915/display/intel_psr.c

@@ -2316,7 +2316,7 @@ int intel_psr2_sel_fetch_update(struct intel_atomic_state *state,
 
 	crtc_state->psr2_su_area.x1 = 0;
 	crtc_state->psr2_su_area.y1 = -1;
-	crtc_state->psr2_su_area.x2 = INT_MAX;
+	crtc_state->psr2_su_area.x2 = drm_rect_width(&crtc_state->pipe_src);
 	crtc_state->psr2_su_area.y2 = -1;
 
 	/*