linux-gen: timer: fix creating timer pool with no name
linux-gen: timer: fix creating timer pool with no name

Previously trying to create a timer pool with no name (=NULL) caused a
segfault.

Signed-off-by: Matias Elo <62402263e8617147f0e4dd5b7f6f8ec67f2b3d2c@nokia.com>
Reviewed-and-tested-by: Bill Fischofer <52f3c909d51cc5d355a68a403df6906b3c1a8f83@linaro.org>
Reviewed-by: Petri Savolainen <d528fd253b9aaf78fa72edbcc6249e82047f6ce6@nokia.com>
Signed-off-by: Maxim Uvarov <db4d16e02ae2d7493db430203537da8b2e34f290@linaro.org>

dkrot/odp,nmorey/odp,ravineet-singh/odp,dkrot/odp,nmorey/odp,erachmi/odp,dkrot/odp,ravineet-singh/odp,nmorey/odp,dkrot/odp,erachmi/odp,erachmi/odp,mike-holmes-linaro/odp,nmorey/odp,mike-holmes-linaro/odp,mike-holmes-linaro/odp,ravineet-singh/odp,mike-holmes-linaro/odp,ravineet-singh/odp,erachmi/odp