[U-Boot] Update and Cut down mach types

[Paulraj, Sandeep]

Wolfgang, Albert,

Russell King sent some updates to the linux kernel for mach-types.

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6f82f4db80189281a8ac42f2e72396accb719b57

He also removed a lot of entries which never made it to mainline.

I have a patch and it is the branch below

http://git.denx.de/?p=u-boot/u-boot-ti.git;a=shortlog;h=refs/heads/update-mach-types


Please review and if it is acceptable to everyone then we should apply this patch to remain in sync with the mainline kernel.

Regards,
Sandeep