omap: overo: Use 200MHz SDRC timings for revision 1, 2 & 3 boards

Gumstix uses 200Mhz RAM on revision 1, 2 & 3 COMs, so use 200MHz
timings rather than 165MHz.  Based on 6cf8bf44b1f8550e12f7f2a16e01890e5de8443d

Signed-off-by: Ash Charles <ashcharles@gmail.com>
1 file changed