qcacmn: Add ini keys for WRR tx scheduler tuning

qcacld-2.0 to qcacmn propagation

Add below four keys to allow user to tune WRR TX scheduler params.
Each key is mapping to one AC defined in data path module through
OL_TX_SCHED_WRR_ADV_CAT_CFG_SPEC.
	gEnableTxSchedWrrBE
	gEnableTxSchedWrrBK
	gEnableTxSchedWrrVI
	gEnableTxSchedWrrVO

Change-Id: I5c34b604297d83673ea065243cc58c3f2180ff3e
CRs-Fixed: 1020141

dp/inc/cdp_txrx_mob_def.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -21,6 +21,8 @@
 #include <sir_types.h>
 #include <htt.h>
 
+#define TX_WMM_AC_NUM	4
+
 #define OL_TXQ_PAUSE_REASON_FW                (1 << 0)
 #define OL_TXQ_PAUSE_REASON_PEER_UNAUTHORIZED (1 << 1)
 #define OL_TXQ_PAUSE_REASON_TX_ABORT          (1 << 2)
@@ -203,6 +205,30 @@ struct ol_txrx_desc_type {
 	uint8_t is_wapi_supported;
 };
 
+/**
+ * struct ol_tx_sched_wrr_ac_specs_t - the wrr ac specs params structure
+ * @wrr_skip_weight: map to ol_tx_sched_wrr_adv_category_info_t.specs.
+ *                            wrr_skip_weight
+ * @credit_threshold: map to ol_tx_sched_wrr_adv_category_info_t.specs.
+ *                            credit_threshold
+ * @send_limit: map to ol_tx_sched_wrr_adv_category_info_t.specs.
+ *                            send_limit
+ * @credit_reserve: map to ol_tx_sched_wrr_adv_category_info_t.specs.
+ *                            credit_reserve
+ * @discard_weight: map to ol_tx_sched_wrr_adv_category_info_t.specs.
+ *                            discard_weight
+ *
+ * This structure is for wrr ac specs params set from user, it will update
+ * its content corresponding to the ol_tx_sched_wrr_adv_category_info_t.specs.
+ */
+struct ol_tx_sched_wrr_ac_specs_t {
+	int wrr_skip_weight;
+	uint32_t credit_threshold;
+	uint16_t send_limit;
+	int credit_reserve;
+	int discard_weight;
+};
+
 /**
  * struct txrx_pdev_cfg_param_t - configuration information
  * passed to the data path
@@ -231,6 +257,8 @@ struct txrx_pdev_cfg_param_t {
 	/* Start queue offset in percentage */
 	uint32_t tx_flow_start_queue_offset;
 #endif
+
+	struct ol_tx_sched_wrr_ac_specs_t ac_specs[TX_WMM_AC_NUM];
 };
 
 /**