mesh: shell: Fix decoding vendor model IDs
mesh: shell: Fix decoding vendor model IDs

The code was accessing the wrong parameter.

X-Original-Commit: 25f8bfa5584d5e77dd077fa46a508f49bf39b35d

apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble,apache/mynewt-nimble