audio: update hidl to 4.0

Bug: 252877772
Test: build pass
Signed-off-by: Carter Hsu <carterhsu@google.com>
Change-Id: I155847d663e3b2c887ef13cc66554f9ed3e35418

manifest.xml

@@ -125,7 +125,7 @@
     <hal format="hidl">
        <name>vendor.google.whitechapel.audio.audioext</name>
        <transport>hwbinder</transport>
-       <version>3.0</version>
+       <version>4.0</version>
        <interface>
            <name>IAudioExt</name>
            <instance>default</instance>