Relax load address check in create_minidebuginfo

The check was just conservative, but some Android binaries do have
a fixed load address.  I have checked that the tool generates the
symbols correctly and the libunwindstack can read them.

Also drop the unused .rodata section.

Test: unwind_symbols $OUT/system/bin/bootstrap/linkerconfig 23a058
Change-Id: Ia990ae2cb693061d09b565f23e1ab299d1551231
1 file changed