crt: Deinline UCRT _swprintf() and _vswprintf() functions and define import symbols for them

This allows to reference _swprintf() and _vswprintf() functions for UCRT
build via their symbols, like for msvcrt builds.

This change is needed to allow to use __MINGW_ASM_CALL(_swprintf).

Signed-off-by: Martin Storsjö <martin@martin.st>
5 files changed