dmaengine fixes for 3.13-rc4

1/ Deprecation of net_dma to be removed in 3.14

2/ Crash regression fix in pl330 from the dmaengine_unmap rework

3/ Crash regression fix for any channel running raid ops without
   CONFIG_ASYNC_TX_DMA from dmaengine_unmap

4/ Memory leak regression in mv_xor from dmaengine_unmap

5/ Build warning regressions in mv_xor, fsldma, ppc4xx, txx9, and
   at_hdmac from dmaengine_unmap

6/ Sleep in atomic regression in dma_async_memcpy_pg_to_pg

7/ New fix in mv_xor for handling channel initialization failures
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)

iQIcBAABAgAGBQJSsg8EAAoJEB7SkWpmfYgClkIP/20g59nP/NIDhzv96rct3HjO
mXTkJgSu7OVhOWDIblXb03QCs9y07svK6G/RNIGu+TtuGEGo19J4P19A1RzilYap
Sn+HnTEhJqIFRiBcl1tVV85yuTu0ZEPnGCvxycZJkoH381dDsywTPMGs//XlqT5K
ydJBx0pp+eSd7IgljpEC8at43XxXfsGsTzpfWjYsXqAKOkHmDuKGyfP+CdpSIZZS
gevMB7GyzkX5z56gXxsq81zole46tQpGien2v84GlJTT+lo5+cNNVR/emkdacRxX
qenwStdppWkQRdbznpBwPOg5gHeFzat8QW2L6zsX7Y8GM0RbMrI92+JRR/Xpo4Vk
W7w9RLLRaGEzDV9Dgq23Z2jQ/8IYAuyU9tHBb7Kw325gg+x/ITQnrOiEOQykxg8c
jWz6+v28OKjBsWYDo9bMhTI1sxxEsK7Jv7x/4J0++RRCk+F+HRgCtRdOUwxDgJdg
PJh/QShpPYFbmc6EycymAvwRTtqWvFKpSwiE+RyOkCxcQbEwm2z4rP2KgIJREvCf
I/09Xk9nGLhaTm43tJV23zISXV/08Z7nod9spPEEQYypyrSrqvD/xp7o79D+WEmH
yua2RIVlwFUFEh4EHXErL/wHnrc9Q01VGCVkoky/I5NluVhJemJuawRg4cYfkWF7
X9wcu8Rki9/kSfJMk2r9
=McgZ
-----END PGP SIGNATURE-----