docs: arch/x86/sva: Fix two grammar errors under Background and FAQ

- Correct "in order" to "in order to"
- Append missing quantifier

Signed-off-by: Brian Ochoa <brianeochoa@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250219150920.445802-1-brianeochoa@gmail.com