Allow file_app in struct sc_pkcs15_card to be NULL (may be the case for pkcs15-emulated cards)
Allow file_app in struct sc_pkcs15_card to be NULL (may be the case for pkcs15-emulated cards)


git-svn-id: 444ed946b9c2220da791e84c3dd156a05f92db99@1754 c6295689-39f2-0310-b995-f0e70906c6a9

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