ath79: consistently use "info" label for default-mac partition

ath79: consistently use "info" label for default-mac partition

The tp-link safeloader devices typically contain a partition
"default-mac" which stores the MAC addresses. It is followed by other
partitions containing device info, like

  {"default-mac", 0x610000, 0x00020},
  {"pin", 0x610100, 0x00020},
  {"product-info", 0x611100, 0x01000},

In DTS, we typically assign a 0x10000 sized partition for these,
which is mostly labelled "mac" or "info". In rarer cases, the
partitions have been enclosed in a larger "tplink" or "config"
partition.

However, when comparing different devices, the implementation appears
relatively arbitrary at the moment.
Thus, this PR aims at harmonizing these partitions by always using
the name "info" for the DTS partition containing "default-mac".
"info" is preferred over "mac" as we never just have "default-mac"
alone, but always some other device-info partitions as well.

While at it, this also establishes a similar partitioning for the
few devices where the "info" partitions are part of a bigger
unspecific "config" partition or similar.

Besides the harmonization itself, this also allows to merge a few
cases in 11-ath10k-caldata.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>