arm: dts: k3-am625-sk: Mark dependent nodes for pre-relocation phase

CPSW node needs PHY, MDIO, pinmux, DMA and INTC nodes.
main_conf is required for phy_gmii_sel.
Mark them as 'bootph-all' so they are available in all
pre-relocation phases.

Fixes the below dts warnings:

<stdout>: Warning (reg_format): /bus@f0000/syscon@100000/phy@4044:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1)
<stdout>: Warning (reg_format): /bus@f0000/ethernet@8000000/ethernet-ports/port@1:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
<stdout>: Warning (unit_address_vs_reg): /bus@f0000/syscon@100000: node has a unit name, but no reg or ranges property
<stdout>: Warning (pci_device_reg): Failed prerequisite 'reg_format'
<stdout>: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
<stdout>: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
<stdout>: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
<stdout>: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
<stdout>: Warning (avoid_default_addr_size): /bus@f0000/syscon@100000/phy@4044: Relying on default #address-cells value
<stdout>: Warning (avoid_default_addr_size): /bus@f0000/syscon@100000/phy@4044: Relying on default #size-cells value
<stdout>: Warning (avoid_default_addr_size): /bus@f0000/ethernet@8000000/ethernet-ports/port@1: Relying on default #address-cells value
<stdout>: Warning (avoid_default_addr_size): /bus@f0000/ethernet@8000000/ethernet-ports/port@1: Relying on default #size-cells value
<stdout>: Warning (avoid_unnecessary_addr_size): Failed prerequisite 'avoid_default_addr_size'
<stdout>: Warning (unique_unit_address): Failed prerequisite 'avoid_default_addr_size'

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Nishanth Menon <nm@ti.com>