qcacmn: Support none 4k page size kernel

DP uses multi page allocation for tx/rx descriptor.
ID and offset mask of decriptor is based on 4096 which
couples with Kernel's MMU PAGE_SIZE. This cause trouble
when deploy driver on none-4K page size kernel.
Set qdf_dp_blockmem_size to 4096 so that DP won't
depend on kernel page size.

Change-Id: I17f5c10b394e8709e6b4b153f3dd094cf792787f
CRs-Fixed: 3235246

dp/wifi3.0/dp_rx_desc.c

@@ -24,8 +24,9 @@
 
 #ifdef RX_DESC_MULTI_PAGE_ALLOC
 A_COMPILE_TIME_ASSERT(cookie_size_check,
-		      PAGE_SIZE / sizeof(union dp_rx_desc_list_elem_t) <=
-		      1 << DP_RX_DESC_PAGE_ID_SHIFT);
+		      (DP_BLOCKMEM_SIZE /
+		       sizeof(union dp_rx_desc_list_elem_t))
+		      <= (1 << DP_RX_DESC_PAGE_ID_SHIFT));
 
 /*
  * dp_rx_desc_pool_is_allocated() - check if memory is allocated for the
@@ -68,7 +69,7 @@ QDF_STATUS dp_rx_desc_pool_alloc(struct dp_soc *soc,
 
 	desc_size = sizeof(*rx_desc_elem);
 	rx_desc_pool->elem_size = desc_size;
-
+	rx_desc_pool->desc_pages.page_size = DP_BLOCKMEM_SIZE;
 	dp_desc_multi_pages_mem_alloc(soc, rx_desc_pool->desc_type,
 				      &rx_desc_pool->desc_pages,
 				      desc_size, num_elem, 0, true);