[Fir2IR] Fix fake override generation for lazy accessors

^KT-65595 Fixed

compiler/testData/codegen/box/fakeOverride/kt65695.kt

@@ -0,0 +1,23 @@
+// TARGET_BACKEND: JVM
+
+// FILE: A.kt
+interface A {
+    val x: String
+}
+
+// FILE: B.kt
+interface B : A
+
+// FILE: C.java
+public interface C extends B { }
+
+// FILE: D.kt
+class D : C {
+    override val x: String
+        get() = "OK"
+}
+
+// FILE: box.kt
+fun go(p: C): String = p.x
+
+fun box(): String = go(D())