qcacmn: MCL Buffer Replenishment

Add support for replenishing the rx buffers using the host to
firmware buffer ring.

This includes adding a flag QCA_HOST2FW_RXBUF_RING:
When QCA_HOST2FW_RXBUF_RING is enabled the host will do the following:
- Allocate the refill buffer ring (HTT_HOST1_TO_FW_RXBUF_RING) and
populate it with
 rx buffers
- Send the refill buffer ring configuration to the firmware
- Allocate the rx DMA ring (HTT_RXDMA_HOST_BUF_RING), leave it empty.
- Send the rx DMA ring configuration to the firmware

When QCA_HOST2FW_RXBUF_RING is disabled, the host will do the following:
- Allocate the rx DMA ring (HTT_RXDMA_HOST_BUF_RING), and populate it with
 rx buffers
- Send the rx DMA ring configuration to the firmware

CRs-Fixed: 1074199
Change-Id: Iec05a973cd9d628c742e3aaa16b8dabc7797625d

hal/wifi3.0/hal_internal.h

@@ -111,11 +111,12 @@ enum hal_srng_ring_id {
 	HAL_SRNG_LMAC1_ID_START = 128,
 	HAL_SRNG_WMAC1_SW2RXDMA0_BUF = HAL_SRNG_LMAC1_ID_START,
 	HAL_SRNG_WMAC1_SW2RXDMA1_BUF = 129,
-	HAL_SRNG_WMAC1_SW2RXDMA0_STATBUF = 130,
-	HAL_SRNG_WMAC1_SW2RXDMA1_STATBUF = 131,
-	HAL_SRNG_WMAC1_RXDMA2SW0 = 132,
-	HAL_SRNG_WMAC1_RXDMA2SW1 = 133,
-	/* 134-142 unused */
+	HAL_SRNG_WMAC1_SW2RXDMA2_BUF = 130,
+	HAL_SRNG_WMAC1_SW2RXDMA0_STATBUF = 131,
+	HAL_SRNG_WMAC1_SW2RXDMA1_STATBUF = 132,
+	HAL_SRNG_WMAC1_RXDMA2SW0 = 133,
+	HAL_SRNG_WMAC1_RXDMA2SW1 = 134,
+	/* 135-142 unused */
 	HAL_SRNG_LMAC1_ID_END = 143
 };