arm64: gen-hyprel.c:40:10: fatal error: generated/autoconf.h: No such file or directory

Linux next 20210201 tag arm64 builds failed. kernel config attached to this email.

BAD: next-20210201 GOOD: next-20210129

make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- 'CC=sccache aarch64-linux-gnu-gcc' 'HOSTCC=sccache gcc' arch/arm64/kvm/hyp/nvhe/gen-hyprel.c:40:10: fatal error: generated/autoconf.h: No such file or directory 40 | #include <generated/autoconf.h> | ^~~~~~~~~~~~~~~~~~~~~~ compilation terminated.

Reported-by: Naresh Kamboju naresh.kamboju@linaro.org