Move platform abstraction to base library

src/mips/assembler-mips-inl.h

Index: src/mips/assembler-mips-inl.h
diff --git a/src/mips/assembler-mips-inl.h b/src/mips/assembler-mips-inl.h
index eec19a671a09b8e8237b6cc6e249c86e0a35c7f1..086e55a6f48dee5fae170a69be02d28a74ea2ffe 100644
--- a/src/mips/assembler-mips-inl.h
+++ b/src/mips/assembler-mips-inl.h
@@ -39,7 +39,7 @@
 
 #include "src/mips/assembler-mips.h"
 
-#include "src/cpu.h"
+#include "src/assembler.h"
 #include "src/debug.h"
 
 
@@ -125,7 +125,7 @@ void RelocInfo::apply(intptr_t delta, ICacheFlushMode icache_flush_mode) {
     // Absolute code pointer inside code object moves with the code object.
     byte* p = reinterpret_cast<byte*>(pc_);
     int count = Assembler::RelocateInternalReference(p, delta);
-    CPU::FlushICache(p, count * sizeof(uint32_t));
+    CpuFeatures::FlushICache(p, count * sizeof(uint32_t));
   }
 }