class/kernel-common: Add KERNEL_VERSION_PATCHLEVEL variable
class/kernel-common: Add KERNEL_VERSION_PATCHLEVEL variable

diorcety/oe-lite-core,sknsean/core,hundeboll/core,hundeboll/core,sknsean/core,hundeboll/core,sknsean/core,diorcety/oe-lite-core,hundeboll/core,sknsean/core,sknsean/core