Merge branch 'stmmac-add-some-fixes-for-stm32'

Christophe Roullier says:

====================
stmmac: add some fixes for stm32

For common stmmac:
	- Add support to set CSR Clock range selection in DT
For stm32mpu:
	- Glue codes to support magic packet
	- Glue codes to support all PHY config :
		PHY_MODE (MII,GMII, RMII, RGMII) and in normal,
		PHY wo crystal (25Mhz),
		PHY wo crystal (50Mhz), No 125Mhz from PHY config
For stm32mcu:
	- Add Ethernet support for stm32h7

Changes in V3:
	- Reverse for syscfg management because it is manage by these patches
	  https://lkml.org/lkml/2018/12/12/133
	  https://lkml.org/lkml/2018/12/12/134
	  https://lkml.org/lkml/2018/12/12/131
	  https://lkml.org/lkml/2018/12/12/132
====================

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