kernel-devsrc: make package version consistent with kernel source

kernel-devsrc: make package version consistent with kernel source

The package version of kernel-devsrc is 1.0 which is not consistent
with kernel source

$ bitbake kernel-devsrc
$ ls tmp/work/qemux86_64-poky-linux/kernel-devsrc/1.0/deploy-rpms/qemux86_64/kernel-devsrc-*
tmp/work/qemux86_64-poky-linux/kernel-devsrc/1.0/deploy-rpms/qemux86_64/kernel-devsrc-1.0-r0.qemux86_64.rpm
tmp/work/qemux86_64-poky-linux/kernel-devsrc/1.0/deploy-rpms/qemux86_64/kernel-devsrc-dbg-1.0-r0.qemux86_64.rpm
tmp/work/qemux86_64-poky-linux/kernel-devsrc/1.0/deploy-rpms/qemux86_64/kernel-devsrc-dev-1.0-r0.qemux86_64.rpm

After commit [kernelsrc.bbclass/perf: make package version consistent
with kernel source] applied, it moved the setting of PKGV to
kernelsrc.bbclass for common use. And bbclass kernelsrc has already
inherited linux-kernel-base, this commit uses bbclass kernelsrc to
instead of linux-kernel-base, and remove duplicated settings.

After applying this commit:
$ ls tmp/work/qemux86_64-poky-linux/kernel-devsrc/1.0/deploy-rpms/qemux86_64/kernel-devsrc-*
tmp/work/qemux86_64-poky-linux/kernel-devsrc/1.0/deploy-rpms/qemux86_64/kernel-devsrc-6.12.31-r0.qemux86_64.rpm
tmp/work/qemux86_64-poky-linux/kernel-devsrc/1.0/deploy-rpms/qemux86_64/kernel-devsrc-dbg-6.12.31-r0.qemux86_64.rpm
tmp/work/qemux86_64-poky-linux/kernel-devsrc/1.0/deploy-rpms/qemux86_64/kernel-devsrc-dev-6.12.31-r0.qemux86_64.rpm

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>