anchor.diff:  interrupt tree reaches an interrupt controller node without an
   interrupts property and thus no explicit interrupt parent.
   
  -See Figure 2-5 for an example of a graphical representation of a device tree with interrupt parent
  -relationships shown. Figure 2-6 shows the corresponding interrupt tree.
  +See Figure 2-5 for an example of a graphical representation of a device
  +tree with interrupt parent relationships shown. Figure 2-6 shows the
  +corresponding interrupt tree.
   
   .Figure 2-5 Device Tree
   ----
  
positive.code: address+2  33
  address+3  44
  
  |<u64> a|Represents a 64-bit integer in big-endian format. Consists of two <u32> values where the first value contains the most significant bits of the integer and the second value contains the least significant bits.
  
  Example: the 64-bit value 0x1122334455667788 would be represented as two
  cells as: <0x11223344 0x55667788>.
  
negative.code: component is described by the #interrupt-cells property of this node—the
  nexus node containing the interrupt-map property.
  
  interrupt-parent:: A single <phandle> value that points to the interrupt
  parent to which the child domain is being mapped.
  
  parent unit address:: The unit address in the domain of the interrupt
  parent. The number of 32-bit cells required to specify this address is
  