ftq: fix a bug in fallThroughError()

src/main/scala/xiangshan/decoupled-frontend/FrontendBundle.scala

@@ -33,7 +33,7 @@ class FetchRequestBundle(implicit p: Parameters) extends XSBundle {
     def carryPos = instOffsetBits+log2Ceil(PredictWidth)+1
     def getLower(pc: UInt) = pc(instOffsetBits+log2Ceil(PredictWidth), instOffsetBits)
     val carry = startAddr(carryPos) =/= fallThruAddr(carryPos)
-    carry && getLower(startAddr) > getLower(fallThruAddr)
+    !carry && getLower(startAddr) > getLower(fallThruAddr)
   }
   override def toPrintable: Printable = {
     p"[start] ${Hexadecimal(startAddr)} [pft] ${Hexadecimal(fallThruAddr)}" +