qcacmn: get NAPI scale factor through ini configuration

NAPI scale factor should be configured based on the board
type. for example Hawkeye could have a different scale factor
compared to Alder.

CRs-Fixed: 3212330
Change-Id: Ie0bad6aade9ca9379997aa974154f9fb903ab93e

wlan_cfg/wlan_cfg.c

@@ -2154,6 +2154,8 @@ wlan_cfg_soc_attach(struct cdp_ctrl_objmgr_psoc *psoc)
 	wlan_cfg_ctx->mpdu_retry_threshold_2 =
 			cfg_get(psoc, CFG_DP_MPDU_RETRY_THRESHOLD_2);
 
+	wlan_cfg_ctx->napi_scale_factor = cfg_get(psoc,
+						  CFG_DP_NAPI_SCALE_FACTOR);
 	return wlan_cfg_ctx;
 }
 
@@ -3401,3 +3403,8 @@ bool wlan_cfg_get_txmon_hw_support(struct wlan_cfg_dp_soc_ctxt *cfg)
 }
 
 qdf_export_symbol(wlan_cfg_get_txmon_hw_support);
+
+uint8_t wlan_cfg_get_napi_scale_factor(struct wlan_cfg_dp_soc_ctxt *cfg)
+{
+	return cfg->napi_scale_factor;
+}