add board specific pin values to series/sdio

Signed-off-by: Brian E Tovar <betovar@leaflabs.com>
gdb not working
-added logging to file
-program crashes randomly

Signed-off-by: Brian E Tovar <betovar@leaflabs.com>
non-working initialization()
trying to sort out why cmd8 and acmd41 return timeouts
Signed-off-by: Brian E Tovar <betovar@leaflabs.com>
realized missing cfg_gpio() call in begin()
-thinking about getting rid of response()
-moved static const variables to commands.h

Signed-off-by: Brian E Tovar <betovar@leaflabs.com>
back to working state
-sometime cmd8 does not respond correctly
-next need to work on power cycle prototype

Signed-off-by: Brian E Tovar <betovar@leaflabs.com>