port lint should warn if platforms contains any but supported_archs is not set

[ryandesign (Ryan Carsten Schmidt)]

port lint should warn if a port sets platforms to a value that includes any and does not also set supported_archs.

#70107 and #70237 are examples of the problems that can result.

From comment:ticket:70107:4, affected portfiles can be located with:

port file all|sort -u|xargs grep -El '^[[:space:]]*platforms.*[[:space:]]any'|xargs grep -EL '^[[:space:]]*supported_archs'