media.c2 aidl: apply aidl definition update

Test: m
Bug: 254050314
Change-Id: I5910662e4fffe469357a144556a67cedeffb4954
diff --git a/media/codec2/hal/aidl/Component.cpp b/media/codec2/hal/aidl/Component.cpp
index 392e3c6..4f5b899 100644
--- a/media/codec2/hal/aidl/Component.cpp
+++ b/media/codec2/hal/aidl/Component.cpp
@@ -292,7 +292,7 @@
     static constexpr IComponent::BlockPoolAllocator::Tag ALLOCATOR_ID =
         IComponent::BlockPoolAllocator::allocatorId;
     static constexpr IComponent::BlockPoolAllocator::Tag IGBA =
-        IComponent::BlockPoolAllocator::igba;
+        IComponent::BlockPoolAllocator::allocator;
     c2_status_t status = C2_OK;
     switch (allocator.getTag()) {
         case ALLOCATOR_ID: