plugin_store: add libcodec2_internal header_libs

At ag/13473071 we expose C2BufferQueueBlockPoolData at
C2BqBufferPriv.h, which needs C2BlockInternal.h header. This CL adds
the corresponding header_libs at plugin_store because it includes
C2BqBufferPriv.h.

Bug: 174188958
Test: m -j32

Change-Id: I0eec5db85b6d7d05ad97df142cb61a9ea2adbe76

components/Android.bp

@@ -30,6 +30,9 @@ cc_library {
         "include",
     ],
 
+    header_libs: [
+        "libcodec2_internal",
+    ],
     shared_libs: [
         "android.hardware.graphics.common@1.0",
         "libc2plugin_store",

plugin_store/Android.bp

@@ -28,7 +28,7 @@ cc_library_shared {
     ],
 
     header_libs: [
-        "libcodec2_internal",
+        "libcodec2_internal", // needed for including C2BqBufferPriv.h.
     ],
     shared_libs: [
         "android.hardware.graphics.bufferqueue@2.0",