tests/basic: fix clutter vector register asm for amd64 and i386
* tests/basic.c (clutter_vector_registers): Pass data pointers through single register for CLUTTER_VECTOR_REGISTER_AMD64 and CLUTTER_VECTOR_REGISTER_I386 as compiler might attempt to allocate separate pointer register for each "m" operator.
- Reported-by: Julian Kirsch <mail@kirschju.re>
- Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>