acpigen: Remove all explicit length tracking

Change-Id: I88248d78c01b4b4e42a097889b5f4ddfdac3d966
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7367
Tested-by: build bot (Jenkins)
Reviewed-by: Rudolf Marek <r.marek@assembler.cz>
7 files changed