alix3d3.conf: add debugshell=5 parameter to wait for 5 seconds to debug
linux-yotco: alix3d3.cfg: add ALIX related configuration variables

Add bunch of ALIX related configuration to get the machine booted.
Including are CS5536 PATA, CRYPTO, PCMCIA configs, CF Card support,
CS5535 sound, etc.

We need to split them up when we are sure that the kernel configuration
works. Currently, one config file is used to easily test/debug the
configuration.