BACKPORT: trace: Add trace_ipi_send_cpu()

Because copying cpumasks around when targeting a single CPU is a bit
daft...

Bug: 326196720
Tested-and-reviewed-by: Valentin Schneider <vschneid@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230322103004.GA571242%40hirez.programming.kicks-ass.net


(cherry picked from commit 68e2d17c)
[Trivial conflict with additional includes]
Signed-off-by: Qais Yousef <qyousef@google.com>
Change-Id: I6c7667165b7528ea261865bef977704fe132c30f
(cherry picked from commit a99414172d2d2664b70512afa000dcaf4c57331a)
Signed-off-by: Qais Yousef <qyousef@google.com>