[ARM] 4915/1: AT91: Update defconfigs (Part 2)

Update the default configuration for the following AT91-based boards:
   Embest ATEB9200
   Cogent CSB337
   Cogent CSB637
   Sperry-Sun KAFA
   Picotux200

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
5 files changed