kernel-yocto: import security fragments from meta-security
Adding the following fragments from meta-security to make them
centrally available and easier to maintain:
283939d5c9e kernel-cache: add yama security fragments
0b86f3fa241 kernel-cache: add ima fragments
731b466654d kernel-cache: add smack
813afe8ff47 kernel-cache: add apparmor fragments
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
