cmd/link: on Windows, generate dynamic base executables also on amd64 and x86 #27144
Description
As part of windows/arm support, in CL125468 cmd/ld has learnt how to generate dynamic base executables, that is binaries that can be relocated at any virtual memory address. This allows the Windows kernel to turn on ASLR.
The support has been activated only on windows/arm. It should be activated also on amd64 and x86, so that Go binaries on Windows can benefit from ASLR.
/cc @alexbrainman