[clang] [clang][driver] Allow unaligned access on ARMv7 and higher by default (PR #82400)

[Peter Smith via cfe-commits]

smithp35 wrote:

Off the top of my head we default to `-ffunction-sections`  and `-fdata-sections` as this helps Garbage Collection, and we have a linker feature that can merge constant pool entries between functions that needs the gaps between the functions.


https://github.com/llvm/llvm-project/pull/82400