[PATCH] net: thunderx: Fix OOPs with ethtool --register-dump

From: David Daney <redacted>
Date: Tue, 16 Aug 2016 12:28:17 -0700

From: David Daney <redacted>

The ethtool_ops .get_regs function attempts to read the nonexistent
register NIC_QSET_SQ_0_7_CNM_CHG, which produces a "bus error" type
OOPs.

Fix by not attempting to read, and removing the definition of,
NIC_QSET_SQ_0_7_CNM_CHG.  A zero is written into the register dump to
keep the layout unchanged.

Signed-off-by: David Daney <redacted>

Applied.