retroarch - switch back to v1.6.0 until v1.6.2 is released due to iss…

…ue with non working enter key

 * ref: libretro/RetroArch#5096 / https://retropie.org.uk/forum/topic/11202/enter-key-stopped-working-in-retroarch-after-update

scriptmodules/emulators/retroarch.sh

@@ -33,7 +33,7 @@ function depends_retroarch() {
 }
 
 function sources_retroarch() {
-    gitPullOrClone "$md_build" https://github.com/libretro/RetroArch.git v1.6.1
+    gitPullOrClone "$md_build" https://github.com/libretro/RetroArch.git v1.6.0
     applyPatch "$md_data/01_hotkey_hack.diff"
     applyPatch "$md_data/02_disable_search.diff"
 }