[Tizen] Fix custom font issue

Xamarin.Forms.Platform.Tizen/EmbeddedFontLoader.cs

@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using ElmSharp;
+using Tizen.Common;
 using IOPath = System.IO.Path;
 using TApplication = Tizen.Applications.Application;
 
@@ -29,6 +30,12 @@ public EmbeddedFontLoader()
 				{
 					font.ResourceStream.CopyTo(fileStream);
 				}
+
+				if (DotnetUtil.TizenAPIVersion > 5)
+				{
+					FontExtensions.FontReinit();
+				}
+
 				return (true, filePath);
 			}
 			catch (Exception ex)

Xamarin.Forms.Platform.Tizen/Extensions/FontExtensions.cs

@@ -1,3 +1,4 @@
+using System.Runtime.InteropServices;
 using Xamarin.Forms.Core;
 using Xamarin.Forms.Internals;
 
@@ -50,5 +51,13 @@ static string CleanseFontName(string fontName)
 			}
 			return fontFile.PostScriptName;
 		}
+
+		public static void FontReinit()
+		{
+			evas_font_reinit();
+		}
+
+		[DllImport("libelementary.so.1")]
+		static extern void evas_font_reinit();
 	}
 }