[LEDE-DEV] fixing of image file names

[Moritz Warning]

Hi,

I noticed that there are some image file names that do not follow the "common" name scheme.
Is it ok to change it? I would like to submit a patch.

Some examples:
- all lower case image names
  - lede-ipq806x-EA8500-squashfs-sysupgrade.tar => lede-ipq806x-ea8500-squashfs-sysupgrade.tar
- revision between -
  - lede-mvebu-linksys-wrt1900acv2-squashfs-sysupgrade.bin => lede-mvebu-linksys-wrt1900ac-v2-squashfs-sysupgrade.bin
- region specific images with region identifiers (us, eu, il, ...)
 - lede-ramips-rt305x-wnce2001-squashfs-factory-northamerica.bin => lede-ramips-rt305x-wnce2001-us-squashfs-factory.bin
- separate images for each version
  - lede-brcm47xx-mips74k-linksys-e1000-v1-v2-v2.1-squashfs.bin => lede-brcm47xx-mips74k-linksys-e1000-v1-squashfs.bin, ...

best wishes and unicorns,
mwarning