maint: update for linux 4.5
maint: update for linux 4.5

* maint/ioctls_sym.sh: Update workarounds for drm/*_drm.h files.
Add workarounds for xen/gntdev.h and net/nfc/nci_core.h files.
Update path of saa6588.h and exynos-fimc.h files.

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