[S] Change in libosmocore[master]: pseudotalloc: add talloc_memdup(), use it in talloc_strdup()

Attention is currently required from: pespin.

fixeria has posted comments on this change. ( https://gerrit.osmocom.org/c/libosmocore/+/35467?usp=email )

Change subject: pseudotalloc: add talloc_memdup(), use it in talloc_strdup() ......................................................................

Patch Set 3:

(1 comment)

Patchset:

PS3:

an explanation on why is this needed may be worth it.

It's needed because I am using `talloc_memdup()` in the next patch (adding V.110 TA), and it fails to pass build verification because this function is missing in pseudotalloc. This specifically applies to the embedded build variant, which is using pseudotalloc instead of libtalloc.