powerpc: Fix another bug in move of altivec code to vector.S

When moving load_up_altivec to vector.S a typo in a comment caused a
thinko setting the wrong variable.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
1 file changed