BeagleV-Fire: MR !102 breaks SD Card slot

Turns out my syntax-error fix in MR !102 (merged) breaks the SD Card slot.

I am not entirely sure what the "fix" fix should be though,
because I really wouldn't want to revert back and in the future someone else walks in,
spots the "error" and un-fix fixes the error once more.

Do we even need a hog for this pin at all?
Should the SDHC driver control it instead? Does it even know how to?

The same question extends to the VIO_ENABLE hog; would it be better to leave this pin at low
until some SYZYGY driver claims whatever it wants to drive, and it's up to it to turn on the power.

@RobertCNelson, your thoughts?