fix: M20 F: list binary files without ProUI

This addresses MarlinFirmware#24332.

Likely MarlinFirmware#23878 introduced a change, where M20 F listed binary only when
DO_LIST_BIN_FILES was set, which in turn was only set indirectly by
DWIN_LCD_PROUI.

This fix re-enables listing ".BIN"-files when CUSTOM_FIRMWARE_UPLOAD is
configured, as documented for M20.

".BIN" files are only listed for M20 F, not in the UI on the printer.

Signed-off-by: Hannes Weisbach <[email protected]>

Author: hannesweisbach

Marlin/src/sd/cardreader.cpp

@@ -224,7 +224,7 @@ bool CardReader::is_visible_entity(const dir_t &p OPTARG(CUSTOM_FIRMWARE_UPLOAD,
   ) return false;
 
   flag.filenameIsDir = DIR_IS_SUBDIR(&p);               // We know it's a File or Folder
-  setBinFlag(extIsBIN((char *)&p.name[8]));             // List .bin files (a firmware file for flashing)
+  setBinFlag(onlyBin && extIsBIN((char *)&p.name[8]));  // List .bin files (a firmware file for flashing)
 
   return (
     flag.filenameIsDir                                  // All Directories are ok

Marlin/src/sd/cardreader.h

@@ -300,8 +300,8 @@ class CardReader {
   #endif
 
   // Binary flag for the current file
-  static bool fileIsBinary() { return TERN0(DO_LIST_BIN_FILES, flag.filenameIsBin); }
-  static void setBinFlag(const bool bin) { TERN(DO_LIST_BIN_FILES, flag.filenameIsBin = bin, UNUSED(bin)); }
+  static bool fileIsBinary() { return TERN0(DO_LIST_BIN_FILES || ENABLED(CUSTOM_FIRMWARE_UPLOAD), flag.filenameIsBin); }
+  static void setBinFlag(const bool bin) { TERN(DO_LIST_BIN_FILES || ENABLED(CUSTOM_FIRMWARE_UPLOAD), flag.filenameIsBin = bin, UNUSED(bin)); }
 
   // Current Working Dir - Set by cd, cdup, cdroot, and diveToFile(true, ...)
   static char* getWorkDirName()  { workDir.getDosName(filename); return filename; }