Fix extraction-width warnings in TL Error.scala

src/main/scala/devices/tilelink/Error.scala

@@ -60,7 +60,7 @@ class TLError(params: DevNullParams, buffer: Boolean = true, beatBytes: Int = 4)
 
       // ReleaseAck is not allowed to report failure
       dc.bits.opcode  := ReleaseAck
-      dc.bits.param   := VecInit(toB, toN, toN)(c.bits.param)
+      dc.bits.param   := VecInit(toB, toN, toN)(c.bits.param(1,0))
       dc.bits.size    := c.bits.size
       dc.bits.source  := c.bits.source
       dc.bits.sink    := 0.U