[LLVMConfig.cmake] LLVM_CONFIG_EXPORTED_TARGETS => LLVM_EXPORTED_TARGETS.

This matches more closely the rest of the variables in LLVMConfig.cmake which
shed the _CONFIG_ part of their names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274175 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed