i2c-pasemi: Depend on PPC_PASEMI again

Looks like a local change I made to be able to test-compile the i2c-pasemi
driver leaked upstream.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>