Log Message:
cross/*: let pkglint autofix indentation and variable alignment

pkglint -Wall -F -r cross

xtensa-esp32-elf-gcc has been manually edited afterwards because when
realigning variable assignments, pkglint only allows one long outlier
line. This package has two long SITES.* lines, therefore pkglint wanted
to indent the variable values much further to the right. This needs to be
fixed in pkglint.