defconfig: ginkgo: Disable CONFIG_AUTOCGROUP

As previous projects, disable sched autocgroup helps
reduce jank in certain workloads

Bug: 144961955
Bug: 143857245
Test: build and boot to home
Change-Id: I5f7cf53fede9e70aa389eed741bc2f9a624ee39d
Signed-off-by: Chiawei Wang <chiaweiwang@google.com>