m.vdsoSP should be set to the SP of the caller of nanotime1,
instead of the SP of nanotime1 itself, which matches m.vdsoPC.
Otherwise the unmatched vdsoPC and vdsoSP would make the stack
trace look like recursive.
We already do it correctly on AMD64, 386, and RISCV64. This CL
fixes the rest.
Also incorporate CL 352509, skipping a flaky test.
Updates #47324, #50772.
Trust: Cherry Mui <firstname.lastname@example.org>
Trust: Josh Bleecher Snyder <email@example.com>
Reviewed-by: Josh Bleecher Snyder <firstname.lastname@example.org>
(cherry picked from commit 217507e)
Run-TryBot: Cherry Mui <email@example.com>
TryBot-Result: Gopher Robot <firstname.lastname@example.org>
Reviewed-by: Michael Knyszek <email@example.com>