ld: aarch64: Update test linker scripts relocs.ld and relocs-ilp32.ld

The updates are to ensure that the .data section exists.  This means
that we always have a data section.  That means that we don't create a
RWX segment and avoid the corresponding warning.

We get this warning when testing aarch64-none-elf with -mcmodel=tiny.
N.b. this changes quite a few testcases from fail to pass.
2 files changed