atlantic forwarding driver v1.1.15

 [ATLDRV-1613] - Atlantic_fwd driver hitting NULL pointer
 dereference at 0000000000000678 while requesting rx rings.

Change-Id: I89984d94d6093655ea5596cb1f297fc548cc42b4
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Git-commit: 3dc6f4c6d29722da5e0f1a9894bb9b608c0d38a3
Git-repo: https://github.com/aquantia/linux-4.14-atlantic-forwarding


[ltyagi@codeaurora.org: Fix compilation error in atl_ptp_irq]
Signed-off-by: Lakshit Tyagi <ltyagi@codeaurora.org>