This broke nano+vga again somehow.  Revert "Fix nanobsd with vga build and restore variables after it"

This reverts commit 18e7ef619b281da2032f751d166455fb471a8be4.
This broke nano+vga again somehow.  Revert "Make sure _VGA is initialized"

This reverts commit f3c5b6d476e41eeaff217f1f3ad3921d425d3472.
This broke nano+vga again somehow. Revert "Revert "Make sure BUILD_KERNELS also includes the wrap_vga kernel""

This reverts commit f02c4ad45c7201ba358f000f332c1af3cfe14b14.
This broke nano+vga again somehow. Revert "Revert "Set these unconditionally for wrap_vga""

This reverts commit 2edfb5944cb77a7da8996e21b856ad76b3f00f6f.