Fix 'external dir' for new 'Home' button in PPSSPP file manager.
Fix 'external dir' for new 'Home' button in PPSSPP file manager.

zhykzhykzhyk/ppsspp-native,hrydgard/native,zhykzhykzhyk/ppsspp-native,Ced2911/native,zhykzhykzhyk/ppsspp-native,libretro/ppsspp-native,Ced2911/native,zhykzhykzhyk/ppsspp-native,hrydgard/native,hrydgard/native,libretro/ppsspp-native,unknownbrackets/native,hrydgard/native,unknownbrackets/native,unknownbrackets/native,libretro/ppsspp-native,libretro/ppsspp-native,Ced2911/native,unknownbrackets/native