[fuchsia_component] Remove component name, add manifest dest

Enforces manifest has a .cmx or .cml: Component
//garnet/examples/components/v2:hello_world_component(//build/toolchain/fuchsia:x64)'s
manifest /[redacted]/garnet/examples/components/v2/meta/hello_world.cmhi
should have extension .cmx or .cml

Enforces matching manifest-manifest_dest of cmx-cmx, cml-cm:
Component
//garnet/examples/components/v2:hello_world_component(//build/toolchain/fuchsia:x64)'s
manifest_dest meta/hello_world.cml should have extension .cm

TESTED=built

Change-Id: Ie23841eeebe039412ac047290b8368ae2ffe820c
1 file changed