Fix invalid icon name.

Lubomir Rintel <lkundrak@v3.sk>

diff -up system-config-keyboard-1.2.15/system-config-keyboard.desktop.ext system-config-keyboard-1.2.15/system-config-keyboard.desktop
diff -up system-config-keyboard-1.2.15/system-config-keyboard.desktop.in.ext system-config-keyboard-1.2.15/system-config-keyboard.desktop.in
--- system-config-keyboard-1.2.15/system-config-keyboard.desktop.in.ext	2008-11-12 23:53:52.000000000 +0100
+++ system-config-keyboard-1.2.15/system-config-keyboard.desktop.in	2008-11-12 23:54:07.000000000 +0100
@@ -1,7 +1,7 @@
 [Desktop Entry]
 _Name=Keyboard
 _Comment=Configure the system keyboard
-Icon=system-config-keyboard.png
+Icon=system-config-keyboard
 Exec=system-config-keyboard
 Type=Application
 Categories=Settings;System;HardwareSettings;