codec2: Update DmaBufAllocator when new ComponentStore is set

Currently Store is captured inside allocators(ion, dmabuf). Update
Allocators when new store is set.

Bug: 211877648
Change-Id: If0ad2128a42ab5db0072de8f6448235fad3e18ee
diff --git a/media/codec2/vndk/C2Store.cpp b/media/codec2/vndk/C2Store.cpp
index 1660c38..dfdd84d 100644
--- a/media/codec2/vndk/C2Store.cpp
+++ b/media/codec2/vndk/C2Store.cpp
@@ -301,13 +301,21 @@
         std::lock_guard<std::mutex> lock(_mComponentStoreReadLock);
         _mComponentStore = store;
     }
-    std::shared_ptr<C2AllocatorIon> allocator;
+    std::shared_ptr<C2AllocatorIon> ionAllocator;
     {
         std::lock_guard<std::mutex> lock(gIonAllocatorMutex);
-        allocator = gIonAllocator.lock();
+        ionAllocator = gIonAllocator.lock();
     }
-    if (allocator) {
-        UseComponentStoreForIonAllocator(allocator, store);
+    if (ionAllocator) {
+        UseComponentStoreForIonAllocator(ionAllocator, store);
+    }
+    std::shared_ptr<C2DmaBufAllocator> dmaAllocator;
+    {
+        std::lock_guard<std::mutex> lock(gDmaBufAllocatorMutex);
+        dmaAllocator = gDmaBufAllocator.lock();
+    }
+    if (dmaAllocator) {
+        UseComponentStoreForDmaBufAllocator(dmaAllocator, store);
     }
 }