Auto merge of #126715 - Rejyr:migrate-readelf-rmake, r=jieyouxu

Migrate `relro-levels`, `static-pie` to `rmake`

Part of #121876.

r? `@jieyouxu`

try-job: aarch64-gnu
try-job: arm-android
try-job: armhf-gnu
try-job: dist-i586-gnu-i586-i686-musl
try-job: dist-various-1
try-job: test-various

Author: bors