nodejs_16.11.1.bb: only handle npm if configured
nodejs_16.11.1.bb: only handle npm if configured

npm-cli.js should be symlinked only when the file is present
the file may not be available if the configure option is --without-npm

Signed-off-by: Nisha Parrakat <4d43e61c5f5bf8ae8a88c908209db44dc3b56386@gmail.com>
Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

openembedded/meta-openembedded,moto-timo/meta-openembedded,openembedded/meta-openembedded,openembedded/meta-openembedded,openembedded/meta-openembedded,openembedded/meta-openembedded,rehsack/meta-openembedded,rehsack/meta-openembedded,openembedded/meta-openembedded,rehsack/meta-openembedded,moto-timo/meta-openembedded,rehsack/meta-openembedded,rehsack/meta-openembedded,moto-timo/meta-openembedded,moto-timo/meta-openembedded,openembedded/meta-openembedded,moto-timo/meta-openembedded,rehsack/meta-openembedded,rehsack/meta-openembedded,openembedded/meta-openembedded