[flang] Fix standalone build regression from llvm#161179 (llvm#164309)

Fix incorrect linking and dependencies introduced in llvm#161179 that break
standalone builds of Flang.

Signed-off-by: Michał Górny <mgorny@gentoo.org>

Author: mgorny

flang/lib/Optimizer/Dialect/MIF/CMakeLists.txt

@@ -3,18 +3,22 @@ add_flang_library(MIFDialect
   MIFOps.cpp
 
   DEPENDS
-  MLIRIR
   MIFOpsIncGen
 
   LINK_LIBS
   FIRDialect
   FIRDialectSupport
   FIRSupport
-  MLIRIR
-  MLIRTargetLLVMIRExport
 
   LINK_COMPONENTS
   AsmParser
   AsmPrinter
   Remarks
+
+  MLIR_DEPS
+  MLIRIR
+
+  MLIR_LIBS
+  MLIRIR
+  MLIRTargetLLVMIRExport
 )