rC325733 exposed bug which caused some tests from test-suite to fail in link time.
When compiling static executable for micromips, CFI symbols are incorrectly labeled as MICROMIPS,
which cause ".eh_frame_hdr refers to overlapping FDEs." error.
This patch does not label CFI symbols as MICROMIPS, and FDEs do not overlap anymore.
This patch also exposes another bug, which is fixed here: D52985