criu tests: It's necessary to align data to use MOVAPS command

It 's necessary to align date, because the operand of movaps command
must be aligned on a 16-byte (128-bit version) boundary or a general-protection
exception (#GP) will be generated.

Signed-off-by: vkonyashkin <vkonyashkin@parallels.com>
Acked-by: Andrew Vagin <avagin@odin.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>