riscv: dts: spacemit: add 24c02 eeprom on BPI-F3

riscv: dts: spacemit: add 24c02 eeprom on BPI-F3

The BPI-F3 board includes a 24c02 eeprom, that stores the MAC addresses
of the two network interfaces and the board's serial number. These
values are also exposed via an onie,tlv-layout nvmem layout.

The eeprom is marked as read-only since its contents are not supposed to
be modified.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Reviewed-by: Vivian Wang <wangruikang@iscas.ac.cn>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Link: https://lore.kernel.org/r/20250926175833.3048516-3-aurelien@aurel32.net
Signed-off-by: Yixun Lan <dlan@gentoo.org>