common: Miscellaneous cleanups (#7239)

* code: Remove some old msvc workarounds

* android: Upgrade to NDK 26

* Allows access to newer libc++

* common/swap: Make use of std::endian

Allows removing a bunch of defines in favor of a two liner.

* common: Remove misc.cpp

* GetLastErrorMsg has been in error.h for a while and also helps removing a depedency from a hot header like common_funcs

* common: use SetThreadDescription API for thread names

* common: Remove linear disk cache

* Has never been used?

* bit_set: Make constexpr

* ring_buffer: Use feature macro

* bit_set: Use <bit> and concepts

* gsp_gpu: Restore comment

* core: Ignore GCC warning

---------

Co-authored-by: Lioncash <mathew1800@gmail.com>
Co-authored-by: Liam <byteslice@airmail.cc>

src/core/hw/lcd.h

@@ -64,22 +64,14 @@ private:
 };
 static_assert(std::is_standard_layout<Regs>::value, "Structure does not use standard layout");
 
-// TODO: MSVC does not support using offsetof() on non-static data members even though this
-//       is technically allowed since C++11. This macro should be enabled once MSVC adds
-//       support for that.
-#ifndef _MSC_VER
 #define ASSERT_REG_POSITION(field_name, position)                                                  \
     static_assert(offsetof(Regs, field_name) == position * 4,                                      \
                   "Field " #field_name " has invalid position")
-
 ASSERT_REG_POSITION(color_fill_top, 0x81);
 ASSERT_REG_POSITION(backlight_top, 0x90);
 ASSERT_REG_POSITION(color_fill_bottom, 0x281);
 ASSERT_REG_POSITION(backlight_bottom, 0x290);
 
-#undef ASSERT_REG_POSITION
-#endif // !defined(_MSC_VER)
-
 extern Regs g_regs;
 
 template <typename T>