[PATCH] common/idpf: remove unnecessary compile option

[Tyler Retzlaff]

On Mon, Apr 24, 2023 at 09:23:48AM -0700, Stephen Hemminger wrote:
> On Mon, 24 Apr 2023 18:47:00 -0400
> Qi Zhang <qi.z.zhang at intel.com> wrote:
> 
> > Remove compile option "__KERNEL" which should not be considered in
> > DPDK. Also only #include <rte_xxx> in idpf_osdep.h.
> > 
> > Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
> 
> This will cause some warnings in DPDK build depending on compiler
> version and flags.  You need to leave the fallthrough comment or
> use one of the other fallthrough annotations.

if there are variations of annotating fallthrough i would not object to
a macro for it being exposed from rte_common.h

full disclosure it would let me use the equivalent that are provided
with windows and windows toolchains.