Most angular2 packages have names of the form @angular/xxx.
The / obviously can't be used in a file name, replace it with -.
(Bitbake rev: d3bd41d0ec9621307c362b394872b18b8b7ed8d6)
Signed-off-by: Anders Darander <anders@chargestorm.se>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>