Merge branch 'Fixes-applied-to-VCS8514'

Bjarni Jonasson says:

====================
Fixes applied to VCS8514

3 different fixes applied to VSC8514:
LCPLL reset, serdes calibration and coma mode disabled.
Especially the serdes calibration is large and is now placed
in a new file 'mscc_serdes.c' which can act as
a placeholder for future serdes configuration.

v1 -> v2:
  Preserved reversed christmas tree
  Removed forward definitions
  Fixed build issues
  Changed net to net-next

v2 -> v3:
  Added cover letter.
  Removed ena_clk_bypass from function call
  Created mscc_serdes.c and .h for serdes configuration
  Modified coma register config.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>