nihstro: Update submodule to latest upstream/master to support MADI instruction decoding.

Common: Remove the BIT macro

When the macro was introduced in 326ec512
it wasn't noticed that it conflicted in name with a heavily used macro
inside of dyncom. This causes some compiler warnings. Since it's only
lightly used, it was opted to simply remove the new macro.

Small memory map definitions cleanup

Also adds better documentation and removes the one-off reimplementation
of the function in pica.h.

Loader: Remove .bin file support

It is of very limited practical utility currently, and will soon be
impossible to support due to more accurate memory map emulation.

Kernel: Process class and ExHeader caps parsing

This has been obsoleted by the field in Process.

dyncom: Remove an unnecessary variable in the interpreter

Remove unnecessary dyncom header files

All this was doing was needlessly aliasing a variable.

Remove unused hash and mem_arena from common

string_util: Get rid of UriDecode/UriEncode

Profiler: Fix off-by-one error when computing average.

Common: Add proper macros to test for architecture pointer size

It is superfluous for Citra. (It's only really necessary if you're doing
JIT. We were using it but not taking any advantage from it.) This should
make 32-bit builds work again.

Currently unused and the code quality is pretty questionable.