coresight: etm4x: Fix merge resolution for amba rework

commit 2c0805f6e346d21a02bba3e3e2ed4fef24e6eb42 from
git@git.assembla.com:cavium/WindRiver.linux.git

This was non-trivial to get right because commits
c23bc382 ("coresight: etm4x: Refactor probing routine") and
5214b563 ("coresight: etm4x: Add support for sysreg only devices")
changed the code flow considerably. With this change the driver can be
built again.

Fixes: 0573d3fa ("Merge branch 'devel-stable' of git://git.armlinux.org.uk/~rmk/linux-arm

 into char-misc-next")
Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org>
Link: https://lore.kernel.org/r/20210205130848.20009-1-uwe@kleine-koenig.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>