Translate Simple Chinese in .desktop file

Add Simple Chinese translation in .desktop file
Change "Playstation" to "PlayStation". (Official name)

Author: Guo Yunhe

linux_various/PCSX2.desktop.in

@@ -3,9 +3,11 @@ Version=1.0
 Terminal=false
 Type=Application
 Name=PCSX2
-GenericName=Playstation 2 Emulator
-Comment=Sony Playstation 2 emulator
-Comment[ru]=Эмулятор Sony Playstation 2
+GenericName=PlayStation 2 Emulator
+GenericName[zh_CN]=PlayStation 2 模拟器
+Comment=Sony PlayStation 2 emulator
+Comment[ru]=Эмулятор Sony PlayStation 2
+Comment[zh_CN]=索尼 PlayStation 2 模拟器
 Exec=env GDK_BACKEND=x11 __GL_THREADED_OPTIMIZATIONS=1 PCSX2
 Icon=PCSX2
 Keywords=game;emulator;