conf/layer.conf: Prefer 6.14.1 for mono and mono-native

Signed-off-by: Zoltán Böszörményi <zboszor@gmail.com>

Author: zboszor

conf/layer.conf

@@ -10,8 +10,8 @@ BBFILE_PATTERN_mono := "^${LAYERDIR}/"
 BBFILE_PRIORITY_mono = "5"
 
 # Default tested with qemux86/qemuarm
-PREFERRED_VERSION_mono ?= "6.12.0.206"
-PREFERRED_VERSION_mono-native ?= "6.12.0.206"
+PREFERRED_VERSION_mono ?= "6.14.1"
+PREFERRED_VERSION_mono-native ?= "6.14.1"
 
 PREFERRED_VERSION_libgdiplus ?= "6.0.5"
 PREFERRED_VERSION_libgdiplus-native ?= "6.0.5"