qcacmn: Fixes for IPA enablement for lithium/Hastings

- Support to pass IPA enabled(disabled) flag from ini to DP layer
- Use ioremap call to translate tx_comp_doorbell_paddr obtained from
  calling ipa_setup api to tx_comp_doorbell_vaddr. This is needed to
  write the initial value of HP at the doorbell address.
- Change REO_DST_RING_SIZE and WLAN_CFG_TX_RING_SIZE to 1023
  for napier/hastings if IPA is enabled. This is needed because,
  ipa_setup API can handle only 16-bit values for the size param(bytes)
  of the ring.
- Disable hash based flow steering for SAP peers in case IPA is enabled
  and set default reo_dest_ring_4 as default RX ring. Since IPA will be
  reaping RX packets from reo_dest_ring_4 only, flow steering is not
  needed for SAP peers.
- Unmap pre-allocated TX buffers for IPA in the TX completion ring.
- Donot execute IPA functionality if IPA is disabled from ini.

Change-Id: I6855bfe293a457ccc0abd1ad5567f5c95232a9d2
CRs-Fixed: 2183519

hal/wifi3.0/hal_api.h

@@ -127,27 +127,27 @@ extern void hal_detach(void *hal_soc);
 
 /* SRNG type to be passed in APIs hal_srng_get_entrysize and hal_srng_setup */
 enum hal_ring_type {
-	REO_DST,
-	REO_EXCEPTION,
-	REO_REINJECT,
-	REO_CMD,
-	REO_STATUS,
-	TCL_DATA,
-	TCL_CMD,
-	TCL_STATUS,
-	CE_SRC,
-	CE_DST,
-	CE_DST_STATUS,
-	WBM_IDLE_LINK,
-	SW2WBM_RELEASE,
-	WBM2SW_RELEASE,
-	RXDMA_BUF,
-	RXDMA_DST,
-	RXDMA_MONITOR_BUF,
-	RXDMA_MONITOR_STATUS,
-	RXDMA_MONITOR_DST,
-	RXDMA_MONITOR_DESC,
-	DIR_BUF_RX_DMA_SRC,
+	REO_DST = 0,
+	REO_EXCEPTION = 1,
+	REO_REINJECT = 2,
+	REO_CMD = 3,
+	REO_STATUS = 4,
+	TCL_DATA = 5,
+	TCL_CMD = 6,
+	TCL_STATUS = 7,
+	CE_SRC = 8,
+	CE_DST = 9,
+	CE_DST_STATUS = 10,
+	WBM_IDLE_LINK = 11,
+	SW2WBM_RELEASE = 12,
+	WBM2SW_RELEASE = 13,
+	RXDMA_BUF = 14,
+	RXDMA_DST = 15,
+	RXDMA_MONITOR_BUF = 16,
+	RXDMA_MONITOR_STATUS = 17,
+	RXDMA_MONITOR_DST = 18,
+	RXDMA_MONITOR_DESC = 19,
+	DIR_BUF_RX_DMA_SRC = 20,
 #ifdef WLAN_FEATURE_CIF_CFR
 	WIFI_POS_SRC,
 #endif