dvb/sim.h: Add missing includes.
dvb/sim.h: Add missing includes.

hiroshiyui/bitstream,kgmoore/bitstream,svogl/bitstream,kierank/bitstream,hiroshiyui/bitstream,theambient/bitstream_c,kgmoore/bitstream,kgmoore/bitstream,avble/bitstream,avble/bitstream,svogl/bitstream,avble/bitstream,svogl/bitstream,gfto/bitstream,gfto/bitstream,kierank/bitstream,hiroshiyui/bitstream,theambient/bitstream_c