Minor release primary fixes are
* get it building with gcc8
* Fixes for riscv64
drop local gcc8 support patch which is not needed now
(From OE-Core rev: b02ac5dd2dc27fe742cb7f20a12090eda3190c84)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
