Deactivate multiple personalities support, because this causes compile
problems at least on the x86/64 target. As OpenWrt compiles all
binaries itself all binaries will use the native personality which is
also used by strace. This change will make it impossible to debug i386
binaries on x86_64 OpenWrt targets for example.
Just deactivate it for ARM64 too.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>