fix: Sync GLOB_DAT allocation and writing conditions

[mati865]

They went out of sync back in 1c40a0c.

This used to cause linking of x86_64 Android Chromium to fail as described in #1561 (comment), but no longer does since #1837.

[mati865]

Note that I have no clue which behaviour is the correct one, and I failed to create self-contained test.
Before #1837 it was resolved as (skipping undefined symbols to avoid clutter):

  10074005: Global Func: DYNAMIC | NON_INTERPOSABLE | DOWNGRADE_TO_LOCAL | FUNCTION | DIRECT | GOT
    cbrtf version `@@LIBC`
    #76 in File #46616 (182/24) /home/mateusz/tmp/chromium/home/mateusz/Projects/chromium/src/out/Default/../../third_party/android_toolchain/ndk/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/x86_64-linux-android/29/libm.so (LOADED)
  10123927 -> 10074005: Weak Func: NON_INTERPOSABLE | DOWNGRADE_TO_LOCAL
    cbrtf
    #10 in File #46815 (182/223) ./home/mateusz/Projects/chromium/src/out/Default/local_rustc_sysroot/lib/rustlib/x86_64-linux-android/lib/libcompiler_builtins_compiler_builtins.rlib @ libcompiler_builtins_compiler_builtins.compiler_builtins.d7f7d3f37644b6ac-cgu.161.rcgu.o (NOT LOADED)

and with current main:

 • 10074005: Global Func: DYNAMIC | FUNCTION | GOT | PLT
    cbrtf version `@@LIBC`
    #76 in File #46616 (182/24) /home/mateusz/tmp/chromium/home/mateusz/Projects/chromium/src/out/Default/../../third_party/android_toolchain/ndk/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/x86_64-linux-android/29/libm.so (LOADED)
 • 10123927 -> 10074005: Weak Func: NON_INTERPOSABLE | DOWNGRADE_TO_LOCAL
    cbrtf
    #10 in File #46815 (182/223) ./home/mateusz/Projects/chromium/src/out/Default/local_rustc_sysroot/lib/rustlib/x86_64-linux-android/lib/libcompiler_builtins_compiler_builtins.rlib @ libcompiler_builtins_compiler_builtins.compiler_builtins.d7f7d3f37644b6ac-cgu.161.rcgu.o (NOT LOADED)

I guess both versions would be fine as long as the resolved flags are sensible.

[davidlattimore]

I attempted to reproduce from a test case and was also unsuccessful. Good to have things in sync in anycase.