stage2: Implicitly enable --eh_frame_hdr when compiling c/c++ files
stage2: Implicitly enable --eh_frame_hdr when compiling c/c++ files

Matches what Clang/GCC driver do.

Closes #7711

andrewrk/zig,raulgrell/zig,raulgrell/zig,zig-lang/zig,zig-lang/zig,zig-lang/zig,raulgrell/zig,andrewrk/zig,raulgrell/zig,raulgrell/zig