compat-wirless: prefix release files with dot

compat-wirless: prefix release files with dot

This prefixes these files with a dot:

compat_base_tree -->         .compat_base_tree
compat_base_tree_version --> .compat_base_tree_version
compat_version -->           .compat_version

Signed-off-by: Luis R. Rodriguez <mcgrof@frijolero.org>