driver: add ESP32-C3 hwinfo

[xuchang-vivo]

Summary

• Add an ESP32-C3 hardware information module under the driver crate.
• Read the base MAC address from the ESP32-C3 eFuse registers.
• Export the new hwinfo module from the driver crate.

Affected board/arch

• seeed_xiao_esp32c3.debug
• RISC-V ESP32-C3

Tests

• rustfmt driver/src/lib.rs driver/src/hwinfo/mod.rs driver/src/hwinfo/esp32c3.rs
• ninja -C out/seeed_xiao_esp32c3.debug/gen/apps/example/wifi
• ninja -C out/seeed_xiao_esp32c3.debug blueos_clippy kernel_unittest_clippy
• ninja -C out/seeed_xiao_esp32c3.debug check_all (blocked locally because qemu-esp32-riscv32 is not installed; build, image generation, and clippy targets completed before the QEMU test runner step failed)

Notes

• No defconfig files were modified.

🤖 Generated with Claude Code

[xuchang-vivo]

build_prs

[github-actions]

Job is started, see https://github.com/vivoblueos/kernel/actions/runs/28419331096.

[github-actions]

✅ All jobs completed successfully, see https://github.com/vivoblueos/kernel/actions/runs/28419331096.