Revert "macbook21: Add CST entries"

Some of C-states still cause hang. Revert C-states patch.

This reverts commit fe661612d8e94d41dc0129533bb02f7c4faaf11a.

Change-Id: I7534dac5d27b853d7b93947c38bf3742797fdcc2
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6694
Tested-by: build bot (Jenkins)
Reviewed-by: Francis Rowe <info@gluglug.org.uk>
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
apple/macbook21: Fix audio.

Change-Id: I0bb939ac377f84431d871b702fdb42651e9a2e96
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5324
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)