Patch to rename the CONFIG_X86_NON_STANDARD to CONFIG_X86_EXTENDED_PLATFORM.

The new name represents the subarches better. Also, default this to 'y'
so that many of the sub architectures that were not easily visible now
become visible.

Also re-organize the extended architecture platform and non standard
platform list alphabetically as suggested by Ingo.
Signed-off-by: NRavikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: NShai Fultheim <shai@scalex86.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>