net/mvpp2: align with MUSDK 18.09

net/mvpp2: align with MUSDK 18.09

This patch introduces necessary changes required by MUSDK 18.09 library.

* As of MUSDK 18.09, pp2_cookie_t is no longer available. Now
  RX descriptor cookie is defined as plain u64 so existing cast
  is no longer valid.

* MUSDK 18.09 increased number of available bpools (buffer hw pools) by
  introducing dma regions support. Update mvpp2 driver accordingly.

* replace MV_NET_IP4_F_TOS with MV_NET_IP4_F_DSCP

  Before this patch, API allowed to configure a classification rule
  according to IPv4 TOS, which was not supported in classifier. This patch
  fixes this by using proper field.

* use 48 bit address mask

  We cannot get pointers exceeding 48 bits thus using 48 bit
  mask for extracting higher IOVA address bits is enough.

Signed-off-by: Natalie Samsonov <nsamsono@marvell.com>
Signed-off-by: Yuval Caduri <cyuval@marvell.com>
Signed-off-by: Tomasz Duszynski <tdu@semihalf.com>
Reviewed-by: Shlomi Gridish <sgridish@marvell.com>
Reviewed-by: Alan Winkowski <walan@marvell.com>
Reviewed-by: Liron Himi <lironh@marvell.com>