[Buildroot] [PATCH for 2021.02.x] support/testing: test_openssh: use Bootlin stable toolchain

[Peter Korsgaard]

>>>>> "Romain" == Romain Naour <romain.naour at gmail.com> writes:

 > The commit backported by [1] enabled the Bootlin bleeding-edge
 > toolchain providing 5.4 kernel headers but the openssh test
 > still use a 4.19 prebuilt kernel. Indeed the prebuilt kernel
 > has been updated to 5.10 in Buildroot 2021.08 [2].

 > Fixes:
 > https://gitlab.com/kubu93/buildroot/-/jobs/1780867274

 > [1] 8d4939c9e0342d8b99d863fbdcaf935d42038469
 > [2] https://git.buildroot.net/buildroot/commit/?id=3cf2782906d5cc05a3966c25518d2ce01f11afc8

 > Signed-off-by: Romain Naour <romain.naour at gmail.com>
 > Cc: Peter Korsgaard <peter at korsgaard.com>

Committed to 2021.02.x, thanks.

-- 
Bye, Peter Korsgaard