tdf#94888: Accessing Sharepoint r/o share through UNC path does not work

Added a Windows API missing error.

The error added:

ERROR_CANT_ACCESS_FILE
returned when a file cannot be accessed by the system.

Mapped to existent osl_File_E_.... for compatibility.

Change-Id: Ia68cdf761a62db8960b143a69ccfa3e12fc6eac5
Reviewed-on: https://gerrit.libreoffice.org/19270Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>

sal/osl/w32/file_error.c

@@ -86,6 +86,7 @@ static const struct osl_file_error_entry errtable[] = {
   {  ERROR_FILE_CHECKED_OUT,       osl_File_E_ACCES    },  /* 220 */
   {  ERROR_DIRECTORY,              osl_File_E_NOENT    },  /* 267 */
   {  ERROR_NOT_ENOUGH_QUOTA,       osl_File_E_NOMEM    },  /* 1816 */
+  {  ERROR_CANT_ACCESS_FILE,       osl_File_E_ACCES    },  /* 1920 */
   {  ERROR_UNEXP_NET_ERR,          osl_File_E_NETWORK  }   /* 59 */
 };