qcacmn: Back pressure in REO2SW1 ring resulting in REO panic

Update QCA_NAPI_DEF_SCALE_BIN_SHIFT for defconfig builds to
the same value as the perf build.
Move the WLAN ext irqs to gold cores for defconfig builds.
Disable cpu isolation before moving the IRQs to gold cores.
Add the ability to move IRQs to gold cores when the cpus
hotplug in.

Change-Id: I4cfecd02a1a2200dc99adee9a324b90c877c13fd
CRs-Fixed: 2638820

hif/src/dispatcher/dummy.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2020 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -368,3 +368,12 @@ int hif_dummy_addr_in_boundary(struct hif_softc *scn, uint32_t offset)
 	return 0;
 }
 
+/**
+ * hif_dummy_config_irq_affinity - dummy call
+ * @scn: hif context
+ *
+ * Return: None
+ */
+void hif_dummy_config_irq_affinity(struct hif_softc *scn)
+{
+}