ControllerEmu: Fix incorrect default radius being set in AnalogStick

The three parameter AnalogStick constructor takes an internal name, a
display name, and a default radius argument. The delegated constructor is
the one that calls the ControlGroup constructor, setting the group type,
so passing the group type here is a logic bug.

The only reason this appeared to work despite this bug is because
GROUP_TYPE_STICK has a value of 1, and the default radius value used for
attachment sticks is 1.0.

Source/Core/InputCommon/ControllerEmu/ControllerEmu.cpp

@@ -172,7 +172,7 @@ void ControllerEmu::ControlGroup::SetControlExpression(int index, const std::str
 }
 
 ControllerEmu::AnalogStick::AnalogStick(const char* const _name, ControlState default_radius)
-    : AnalogStick(_name, _name, GROUP_TYPE_STICK)
+    : AnalogStick(_name, _name, default_radius)
 {
 }