accel/habanalabs: fix a missing-braces compilation warning

Replace initialization of "struct cpucp_packet" from "{0} to "{}" to
avoid a "missing braces around initializer" compilation warning.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

drivers/accel/habanalabs/common/firmware_if.c

@@ -3152,7 +3152,7 @@ int hl_fw_get_sec_attest_info(struct hl_device *hdev, struct cpucp_sec_attest_in
 int hl_fw_send_generic_request(struct hl_device *hdev, enum hl_passthrough_type sub_opcode,
 						dma_addr_t buff, u32 *size)
 {
-	struct cpucp_packet pkt = {0};
+	struct cpucp_packet pkt = {};
 	u64 result;
 	int rc = 0;