net_dma: remove duplicate assignment in dma_skb_copy_datagram_iovec
net_dma: remove duplicate assignment in dma_skb_copy_datagram_iovec

No need to compute copy twice in the frags loop in
dma_skb_copy_datagram_iovec().

Signed-off-by: Brice Goglin <684dd5cf4bc600ef8f30fe6f8993f3839af22db5@inria.fr>
Acked-by: Shannon Nelson <14bbe8f00ad7c6d888a504d41f5500c00531af99@intel.com>
Signed-off-by: Maciej Sosnowski <a6d933f4cf474de3a01bcf87cdc350f7c76eff48@intel.com>
Signed-off-by: Dan Williams <24ee2bf0bd8ac766c348bf1f0639943bac1535c6@intel.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs