HwIms: Restore (un)registerForDataRegStateOrRatChanged

* The Huawei IMS package for older Android versions (like Android 9) relies on both
  registerForDataRegStateOrRatChanged and unregisterForDataRegStateOrRatChanged without
  requiring a TransportType argument. Google, in their infinite wisdom, introduced this
  additional parameter, altering the method signatures and causing crashes as a result.

smali/com/huawei/ims/HwImsServiceImpl.smali

@@ -4871,15 +4871,19 @@
     invoke-direct {p0, v2}, Lcom/huawei/ims/HwImsServiceImpl;->log(Ljava/lang/String;)V
 
     .line 2971
-    invoke-virtual {v0}, Lcom/android/internal/telephony/Phone;->getServiceStateTracker()Lcom/android/internal/telephony/ServiceStateTracker;
+    invoke-virtual {v1}, Lcom/android/internal/telephony/Phone;->getServiceStateTracker()Lcom/android/internal/telephony/ServiceStateTracker;
 
     move-result-object v2
 
     iget-object v4, p0, Lcom/huawei/ims/HwImsServiceImpl;->mHandler:Landroid/os/Handler;
 
+    const/16 v3, 0x1
+
     const/16 v5, 0x3ef
 
-    invoke-virtual {v2, v4, v5, v3}, Lcom/android/internal/telephony/ServiceStateTracker;->registerForDataRegStateOrRatChanged(Landroid/os/Handler;ILjava/lang/Object;)V
+    const/4 v6, 0x0
+
+    invoke-virtual {v2, v3, v4, v5, v6}, Lcom/android/internal/telephony/ServiceStateTracker;->registerForDataRegStateOrRatChanged(ILandroid/os/Handler;ILjava/lang/Object;)V
 
     .line 2976
     :cond_2
@@ -6328,3 +6332,16 @@
     .line 3285
     return-void
 .end method
+
+.method private registerForDataRegStateOrRatChanged(I)V
+    .locals 5
+    .param p1, "transportType" # I
+
+    move-object/from16 v1, p0
+    iget-object v3, v1, Lcom/android/internal/telephony/ServiceStateTracker;->mHandler:Landroid/os/Handler;
+
+    const v4, 0x1
+    invoke-virtual {v1, v4, v3, p1}, Lcom/android/internal/telephony/ServiceStateTracker;->registerForDataRegStateOrRatChanged(ILandroid/os/Handler;ILjava/lang/Object;)V
+
+    return-void
+.end method