crosswalk: fix build on ARM

crosswalk: fix build on ARM

Import build changes from Leon Anavi <leon.anavi@konsulko.com>
git tree, in order to fix crosswalk builds on Tizen.

What happens here is that the crosswalk target does lots of
things out of their business, like trying to enforce a certain
name for gcc and hardcoding patches at the toolchain.

It is up to bitbake toolchain to come with the proper tools
to build the target. Whatever those tools are named, the
target should build.

While here, remove bad spaces from those recipes.

Change-Id: I86df8dd7ebaebb20dd0ac9674ce9ca6ab3102e42
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>