drm/amd/display/dc/core/dc_link_ddc: Remove unnecessary conversion to bool

Fix the following coccicheck warnings:

./drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c:544:34-39: WARNING:
conversion to bool not needed here.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -558,7 +558,7 @@ bool dal_ddc_service_query_ddc_data(
 			/* should not set mot (middle of transaction) to 0
 			 * if there are pending read payloads
 			 */
-			payload.mot = read_size == 0 ? false : true;
+			payload.mot = !(read_size == 0);
 			payload.length = write_size;
 			payload.data = write_buf;