x86/fpu/xstate: Align xstate components according to CPUID

CPUID function 0x0d, sub function (i, i > 1) returns in ecx[1] the
alignment requirement of component 'i' when the compacted format is used.

If ecx[1] is 0, component 'i' is located immediately following the preceding
component. If ecx[1] is 1, component 'i' is located on the next 64-byte
boundary following the preceding component.

Signed-off-by: Yu-cheng Yu <[email protected]>
Reviewed-by: Dave Hansen <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Quentin Casasnovas <[email protected]>
Cc: Ravi V. Shankar <[email protected]>
Cc: Sai Praneeth Prakhya <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Link: http://lkml.kernel.org/r/331e2bef1a0a7a584f06adde095b6bbfbe166472.1466179491.git.yu-cheng.yu@intel.com
Signed-off-by: Ingo Molnar <[email protected]>

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