mem-cache: Create an address aware TempCacheBlk

tempBlock has its member variables  manually set in order to allow
it to be used in the block address regeneration function. This is
not necessary, and ti can be simply given the address, so  it does
not need to be aware of set and tag. This will simplify
implementation of sector and skewed caches.

Change-Id: Iaffb10c323509722cd5589fe1030b818d43336d6
Reviewed-on: https://gem5-review.googlesource.com/9961
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>

src/mem/cache/cache.cc

@@ -873,7 +873,7 @@ Cache::cleanEvictBlk(CacheBlk *blk)
     assert(blk && blk->isValid() && !blk->isDirty());
     // Creating a zero sized write, a message to the snoop filter
     Request *req =
-        new Request(tags->regenerateBlkAddr(blk), blkSize, 0,
+        new Request(regenerateBlkAddr(blk), blkSize, 0,
                     Request::wbMasterId);
     if (blk->isSecure())
         req->setFlags(Request::SECURE);