model: Remove bogus warning
model: Symbol lookup by name must be locked
bfd-provider: Fixup all symbol sizes after parsing all symbol types

Otherwise we might get the situation

   NORMAL   symName 0x0
   DYNAMIC  symName 0x0
   NORMAL   kalle   0x100
   DYNAMIC  anka    0x10000

and here symName should be 0x100 big in both cases, but without this
patch the dynamic one will be 0x10000 instead!

No unit test unfortunately.