kernel.bbclass: add original package name to RPROVIDES for -image and -base

kernel.bbclass: add original package name to RPROVIDES for -image and -base

* -image and -base change PKG to:
  PKG:${KERNEL_PACKAGE_NAME}-image = "${KERNEL_PACKAGE_NAME}-image-${@legitimize_package_name(d.getVar(KERNEL_VERSION))}"
  PKG:${KERNEL_PACKAGE_NAME}-base = "${KERNEL_PACKAGE_NAME}-${@legitimize_package_name(d.getVar(KERNEL_VERSION))}"

* but only when debian.bbclass is inheritted they add the original package name into RPROVIDES by:
  https://git.openembedded.org/openembedded-core/commit/?id=3409c4379559afbb1d1d29045582995147a33bbc

* fixes the build if some packagegroup or something RDEPENDS on kernel-image or kernel-base
  and the DISTRO doesn't inherit debian.bbclass

* as shown in pkgdata:
  linux-raspberrypi $ egrep "^(PKG:)|(RPRO)" 6.6.36+git-*/pkgdata/runtime/kernel-image
  6.6.36+git-debian/pkgdata/runtime/kernel-image:RPROVIDES:kernel-image:  kernel-image (=6.6.36+git@PRSERV_PV_AUTOINC@+733366844f_769634f344)
  6.6.36+git-debian/pkgdata/runtime/kernel-image:PKG:kernel-image: kernel-image-6.6.36-v8
  6.6.36+git-without-debian/pkgdata/runtime/kernel-image:PKG:kernel-image: kernel-image-6.6.36-v8

  linux-raspberrypi $ egrep "^(PKG:)|(RPRO)" 6.6.36+git-*/pkgdata/runtime/kernel-image-image
  6.6.36+git-debian/pkgdata/runtime/kernel-image-image:RPROVIDES:kernel-image-image:  kernel-image-image (=6.6.36+git@PRSERV_PV_AUTOINC@+733366844f_769634f344)
  6.6.36+git-debian/pkgdata/runtime/kernel-image-image:PKG:kernel-image-image: kernel-image-image-6.6.36-v8
  6.6.36+git-without-debian/pkgdata/runtime/kernel-image-image:PKG:kernel-image-image: kernel-image-image-6.6.36-v8

Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>