Patches for mpc52xx_spi

[Luotao Fu]

Hi Grant,

here are several patches for the dedicated spi controller on mpc5200 SOC. The
patchset contains two fixes and an enhancement. I noticed that your original V4
Patch is still pending for mainline. So I made the patches against the latest
version in your -next tree. Tested on a mpc5200b machine with 7 spi devices,
(cs lines are conntected to gpios) on 2.6.31, should work with latest kernel
also. Please review.

cheers
Luotao Fu