[Telink] -Wundef errors in config headers

[bzbarsky-apple]

Reproduction steps

Enable -Wundef. https://github.com/project-chip/connectedhomeip/actions/runs/6419947071/job/17430925696?pr=29582

INFO    ../../../../src/platform/telink/CHIPPlatformConfig.h:65:5: error: "CONFIG_PM" is not defined, evaluates to 0 [-Werror=undef]
INFO       65 | #if CONFIG_PM
INFO          |     ^~~~~~~~~
...
INFO    ../../../../src/system/SystemConfig.h:736:62: error: "CONFIG_NET_SOCKETS_POSIX_NAMES" is not defined, evaluates to 0 [-Werror=undef]
INFO      736 | #if CHIP_SYSTEM_CONFIG_USE_SOCKETS && defined(__ZEPHYR__) && CONFIG_NET_SOCKETS_POSIX_NAMES
INFO          |                                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
INFO    cc1plus: note: unrecognized command-line option '-Wno-unknown-warning-option' may have been intended to silence earlier diagnostics

And also in https://github.com/project-chip/connectedhomeip/actions/runs/6419947054/job/17430927196?pr=29582

../../../../../../src/platform/Zephyr/ThreadStackManagerImpl.h:32:6: error: "CONFIG_SOC_SERIES_RISCV_TELINK_B9X" is not defined, evaluates to 0 [-Werror=undef]
   32 | #if !CONFIG_SOC_SERIES_RISCV_TELINK_B9X
      |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

which looks like Telink code breaking other platforms (in this case nrfconnect).

Are these headers failing to include something that would define the relevant macros?

Platform

other

Platform Version(s)

No response

Type

CI tested

(Optional) If manually tested please explain why this is only manually tested

No response

Anything else?

No response

[bzbarsky-apple]

@s07641069 See above.