drm/amd/display: Keep OTG on when Z10 is disable

[Why]
Disable OTG when PSRSU with z10 even if z10 is disable

[How]
Reverse condition to keep OTG on when Z10 is disable
Reviewed-by: NRobin Chen <po-tchen@amd.com>
Acked-by: NHamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: NLewis Huang <Lewis.Huang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc_link.c

@@ -3378,8 +3378,8 @@ bool dc_link_setup_psr(struct dc_link *link,
 		case FAMILY_YELLOW_CARP:
 		case AMDGPU_FAMILY_GC_10_3_6:
 		case AMDGPU_FAMILY_GC_11_0_1:
-			if(!dc->debug.disable_z10)
-				psr_context->psr_level.bits.SKIP_CRTC_DISABLE = false;
+			if (dc->debug.disable_z10)
+				psr_context->psr_level.bits.SKIP_CRTC_DISABLE = true;
 			break;
 		default:
 			psr_context->psr_level.bits.SKIP_CRTC_DISABLE = true;