Instead of defining ASN1_LIB in each of the generated ASN1 source
files require that the generated source file be compiled with the
ASN1_LIB symbol defined (on Windows). All of the compiled objects
linked into the same library which might be accessing an ASN1 exported
symbol must have ASN1_LIB defined to ensure that the use of the
exported symbols will not be via an import.
Change-Id: Ie38c105d1d376419717fce0830dc28f5b82547d4
6694f98791