wlan_platform: Bring initial files for CNSS family drivers

Bring CNSS family drivers from msm-5.10 kernel as of commit
cc3bc4b888af (cnss2: Fix a few switch statement fallthrough
issues) to WLAN platform project. Fix SPDX-License format for
a few files as well.

drivers/net/wireless/cnss* -> .
include/net/cnss* -> inc/

Above shows how directories and header files are relocated.

Change-Id: If8fd40a35c9fdbeb1aa76a8aac5fdb1fc1c7e786

cnss2/coexistence_service_v01.h

@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2019, The Linux Foundation. All rights reserved. */
+
+#ifndef COEXISTENCE_SERVICE_V01_H
+#define COEXISTENCE_SERVICE_V01_H
+
+#define COEX_SERVICE_ID_V01 0x22
+#define COEX_SERVICE_VERS_V01 0x01
+
+#define COEX_SERVICE_MAX_MSG_LEN 8204
+
+#define QMI_COEX_SWITCH_ANTENNA_TO_WLAN_RESP_V01 0x0042
+#define QMI_COEX_SWITCH_ANTENNA_TO_WLAN_REQ_V01 0x0042
+#define QMI_COEX_SWITCH_ANTENNA_TO_MDM_RESP_V01 0x0042
+#define QMI_COEX_SWITCH_ANTENNA_TO_MDM_REQ_V01 0x0042
+
+#define COEX_ANTENNA_BAND_2GHZ_CHAIN0_V01 ((u64)0x0000000000000001ULL)
+#define COEX_ANTENNA_BAND_2GHZ_CHAIN1_V01 ((u64)0x0000000000000002ULL)
+#define COEX_ANTENNA_BAND_5GHZ_CHAIN0_V01 ((u64)0x0000000000000004ULL)
+#define COEX_ANTENNA_BAND_5GHZ_CHAIN1_V01 ((u64)0x0000000000000008ULL)
+
+struct coex_antenna_switch_to_wlan_req_msg_v01 {
+	u64 antenna;
+};
+
+#define COEX_ANTENNA_SWITCH_TO_WLAN_REQ_MSG_V01_MAX_MSG_LEN 11
+extern struct qmi_elem_info coex_antenna_switch_to_wlan_req_msg_v01_ei[];
+
+struct coex_antenna_switch_to_wlan_resp_msg_v01 {
+	struct qmi_response_type_v01 resp;
+	u8 grant_valid;
+	u64 grant;
+};
+
+#define COEX_ANTENNA_SWITCH_TO_WLAN_RESP_MSG_V01_MAX_MSG_LEN 18
+extern struct qmi_elem_info coex_antenna_switch_to_wlan_resp_msg_v01_ei[];
+
+struct coex_antenna_switch_to_mdm_req_msg_v01 {
+	u64 antenna;
+};
+
+#define COEX_ANTENNA_SWITCH_TO_MDM_REQ_MSG_V01_MAX_MSG_LEN 11
+extern struct qmi_elem_info coex_antenna_switch_to_mdm_req_msg_v01_ei[];
+
+struct coex_antenna_switch_to_mdm_resp_msg_v01 {
+	struct qmi_response_type_v01 resp;
+};
+
+#define COEX_ANTENNA_SWITCH_TO_MDM_RESP_MSG_V01_MAX_MSG_LEN 7
+extern struct qmi_elem_info coex_antenna_switch_to_mdm_resp_msg_v01_ei[];
+
+#endif