qcacmn: Add support to use pre-alloc mem

Add logic to pre-allocate DP consistent memory and reuse later
on wifi on/off. This prevents memory fragmentation.

Change-Id: I1e5eb0da39950a5d028dd46d38ff715f283e53ff
CRs-Fixed: 2740889

dp/wifi3.0/dp_internal.h

@@ -22,8 +22,12 @@
 #include "dp_types.h"
 
 #define RX_BUFFER_SIZE_PKTLOG_LITE 1024
+
 #define DP_PEER_WDS_COUNT_INVALID UINT_MAX
 
+/* Alignment for consistent memory for DP rings*/
+#define DP_RING_BASE_ALIGN 32
+
 #define DP_RSSI_INVAL 0x80
 #define DP_RSSI_AVG_WEIGHT 2
 /*