drm/amd/display: change kzalloc to kcalloc in dcn314_validate_bandwidth()

We are trying to get rid of all multiplications from allocation
functions to prevent integer overflows. Here the multiplication is
probably safe, but using kcalloc() is more appropriate and improves
readability. This patch has no effect on runtime behavior.

Reviewed-by: Rodrigo Siqueira <siqueira@igalia.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ethan Carter Edwards <ethan@ethancedwards.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: ethancedwards8

drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c

@@ -1704,7 +1704,8 @@ bool dcn314_validate_bandwidth(struct dc *dc,
 
 	int vlevel = 0;
 	int pipe_cnt = 0;
-	display_e2e_pipe_params_st *pipes = kzalloc(dc->res_pool->pipe_count * sizeof(display_e2e_pipe_params_st), GFP_KERNEL);
+	display_e2e_pipe_params_st *pipes = kcalloc(dc->res_pool->pipe_count,
+			sizeof(display_e2e_pipe_params_st), GFP_KERNEL);
 	DC_LOGGER_INIT(dc->ctx->logger);
 
 	BW_VAL_TRACE_COUNT();