* rc/bin/riostart_glenda: some renames
* env.sh: misc
Revert "* env.sh: misc"

This reverts commit 974ecdffdf33acb9d0c05326c43e56506c1e1a14.
* env.sh: fix
* sys/src/9/boot/boot.c: comment
* sys/src/cmd/aux/vga/: remove all other graphics card except cirrus logic
* lib/video.specs: delete
* lib/vgadb: simplify
remove extra fonts
add fixed/
* sys/src/9/pc/vgaclgd542x.c: can do aux/vga -l 800x600x8 or more!
* lib/font/list-font.txt: pad note
* sys/src/9/boot/boot.c: bigger resolution by default
adding back arm! /arm, bcm kernel, 5a5c5l, libmach, libc
* sys/src/mkfile.proto: adding back libmach/ for arm
* sys/src/libthread/: remove obsolete archi
* sys/src/cmd/5i: and vi instruction simulator?
libc libmp libsec  arm files
* sys/src/libmach/5.c:  and co
* other/drawterm/