riscv: dts: spacemit: add 24c04 eeprom on Milk-V Jupiter

riscv: dts: spacemit: add 24c04 eeprom on Milk-V Jupiter

The Milk-V Jupiter board includes a 24c04 eeprom on the i2c2 bus. The
eeprom contains an ONIE TLV table, which on the board I tested only
provides a product-name entry. Expose it 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: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Yixun Lan <dlan@kernel.org>
Link: https://lore.kernel.org/r/20260326183745.1370642-3-aurelien@aurel32.net
Signed-off-by: Yixun Lan <dlan@kernel.org>