package.bbclass: Avoid stripping signed kernel modules in splitdebuginfo

package.bbclass: Avoid stripping signed kernel modules in splitdebuginfo

Since commit d756b346f248df47b0540644adb1d0f17bcc4b6e kernel modules are stripped by the functions 'runstrip' and 'splitdebuginfo'. Signed modules must not be stripped. Function 'runstrip' avoids this by running is_kernel_module_signed. Apply the same check to splitdebuginfo.

(From OE-Core rev: 6859226652339b19cbc7bdfec074fe2016cdee60)

Signed-off-by: Christoph Lauer <christoph.lauer@xtronic.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>