Flash partition name used to refer to a partition
by the system. This can be any alpha-numeric character
string of the form AAAAAAAAnn, where A represents an
optional alpha character and n a numeric character.
Any numeric characters must always form the trailing
part of the string. The system will strip off the alpha
characters and use the numeric portion to map to a
partition index.
Flash operations get directed to a device partition
based on this name.
The system has a concept of a default partition. This
would be the first partition in the device. The system
directs an operation to the default partition whenever
a partition name is not specified.
The partition name is therefore mandatory except when
the operation is being done on the default partition, or
the device has just one partition (is not partitioned).