Enable iSCSI target and RAM block devices flags in kernel BUG=b/325147066 TEST=presubmit RELEASE_NOTE=Added support for iSCSI targets and RAM block devices. cos-patch: bug Signed-off-by: Kevin Berry <kpberry@google.com> Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/65673 Reviewed-by: Oleksandr Tymoshenko <ovt@google.com> Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com> Change-Id: Iffc3edd7916ea6f4b0da428fa9102e8032011913 Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/66950 Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>