dev-util/nvidia-cuda-toolkit: nvprof/nsight fix

dev-util/nvidia-cuda-toolkit: nvprof/nsight fix

Previously, there were bugs in the ebuilds that prevented nsight and
nvprof from being installed correctly.  For nvprof, a no longer needed
wrapper was begin installed on top of it.  In the case of nsight, it was
not setting the executable to a+x.  Additionally, cuda-config was being
installed in a way would cause ebuild to complain about permissions.
These were resolved with better use of doexe. Additionally, fixed
revdep-rebuild warnings with cuda profiling libraries.

Closes: https://github.com/gentoo/gentoo/pull/13986
Closes: https://bugs.gentoo.org/686738
Package-Manager: Portage-2.3.79, Repoman-2.3.16
Signed-off-by: Robert Underwood <rr.underwood94@gmail.com>
Signed-off-by: Jason Zaman <perfinion@gentoo.org>