arm: dts: k3-j721e-sk/common-proc-board: Fix boot

Since commit 9e644284 ("dm: core: Report bootph-pre-ram/sram node
as pre-reloc after relocation") A53 u-boot proper is broken. This is
because nodes marked as 'bootph-pre-ram' are not available at u-boot
proper before relocation.

To fix this we mark all nodes in u-boot.dtsi as 'bootph-all'.

Fixes: 69b19ca6 ("arm: dts: k3-j721e: Sync with v6.6-rc1")
Cc: Neha Francis <n-francis@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Tom Rini <trini@konsulko.com> # J721E-EVM GP
Tested-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>