crt: Rename all mingw_* stdio files to names which functions they provide

For example file stdio/mingw_fprintfw.c provides function fwprintf(),
so rename it to stdio/mingw_fwprintf.c.

Signed-off-by: LIU Hao <lh_mouse@126.com>

mingw-w64-crt/Makefile.am

@@ -942,7 +942,6 @@ src_libmingwex=\
   ssp/memset_chk.c       ssp/stack_chk_fail.c       ssp/stack_chk_guard.c   ssp/strcat_chk.c \
   ssp/stpcpy_chk.c       ssp/strcpy_chk.c           ssp/strncat_chk.c       ssp/strncpy_chk.c \
   \
-  stdio/mingw_pformat.h    \
   stdio/scanf2-argcount-char.c stdio/scanf2-argcount-wchar.c \
   stdio/vfscanf2.S         stdio/vfwscanf2.S         stdio/vscanf2.S          stdio/vsscanf2.S          stdio/vswscanf2.S \
   stdio/vwscanf2.S         stdio/strtok_r.c          stdio/scanf.S \
@@ -951,12 +950,16 @@ src_libmingwex=\
   stdio/_wstat.c           stdio/_wstat64i32.c       stdio/asprintf.c \
   stdio/fopen64.c          stdio/fseeko32.c          stdio/fseeko64.c                                   stdio/ftello.c          \
   stdio/ftello64.c         stdio/ftruncate64.c       stdio/lltoa.c            stdio/lltow.c             stdio/lseek64.c         \
-  stdio/mingw_fprintf.c    stdio/mingw_fprintfw.c    stdio/mingw_fscanf.c     stdio/mingw_fwscanf.c     stdio/mingw_pformat.c   \
-  stdio/mingw_pformatw.c   stdio/mingw_printf.c      stdio/mingw_printfw.c    stdio/mingw_scanf.c       stdio/mingw_snprintf.c  \
-  stdio/mingw_snprintfw.c  stdio/mingw_sprintf.c     stdio/mingw_sprintfw.c   stdio/mingw_sscanf.c      stdio/mingw_swscanf.c   \
-  stdio/mingw_vfprintf.c   stdio/mingw_vfprintfw.c   stdio/mingw_vfscanf.c    stdio/mingw_vprintf.c     stdio/mingw_vprintfw.c  \
-  stdio/mingw_vsnprintf.c  stdio/mingw_vsnprintfw.c  stdio/mingw_vsprintf.c   stdio/mingw_vsprintfw.c   stdio/mingw_wscanf.c    \
-  stdio/mingw_wvfscanf.c   stdio/snprintf.c          stdio/snwprintf.c        stdio/truncate.c        \
+  \
+  stdio/mingw_pformat.h    \
+  stdio/mingw_fprintf.c    stdio/mingw_fwprintf.c    stdio/mingw_fscanf.c     stdio/mingw_fwscanf.c     stdio/mingw_pformat.c   \
+  stdio/mingw_wpformat.c   stdio/mingw_printf.c      stdio/mingw_wprintf.c    stdio/mingw_scanf.c       stdio/mingw_snprintf.c  \
+  stdio/mingw_swprintf.c   stdio/mingw_snwprintf.c   stdio/mingw_sprintf.c    stdio/mingw_sscanf.c      stdio/mingw_swscanf.c   \
+  stdio/mingw_vfprintf.c   stdio/mingw_vfwprintf.c   stdio/mingw_vfscanf.c    stdio/mingw_vprintf.c     stdio/mingw_vwprintf.c  \
+  stdio/mingw_vsnprintf.c  stdio/mingw_vswprintf.c   stdio/mingw_vsnwprintf.c stdio/mingw_vsprintf.c    stdio/mingw_wscanf.c    \
+  stdio/mingw_vfwscanf.c   \
+  \
+  stdio/snprintf.c         stdio/snwprintf.c         stdio/truncate.c        \
   stdio/ulltoa.c           stdio/ulltow.c            stdio/vasprintf.c        stdio/vfscanf.c           stdio/vfwscanf.c        \
   stdio/vscanf.c           stdio/vsnprintf.c         stdio/vsnwprintf.c        stdio/vsscanf.c         \
   stdio/vswscanf.c         stdio/vwscanf.c           stdio/wtoll.c            stdio/mingw_asprintf.c    stdio/mingw_vasprintf.c