Camera: Add flag for 10 bit support in extensions

Test: CTS
Bug: 316375635
Change-Id: I0858130aa00a3067629ada7d9536f4a99ebe9f02
diff --git a/camera/camera_platform.aconfig b/camera/camera_platform.aconfig
index c3da4a9..87f3730 100644
--- a/camera/camera_platform.aconfig
+++ b/camera/camera_platform.aconfig
@@ -119,3 +119,10 @@
      description: "Allowlisting to exempt safety-relevant cameras from privacy control for automotive devices"
      bug: "282814430"
 }
+
+flag {
+     namespace: "camera_platform"
+     name: "extension_10_bit"
+     description: "Enables 10-bit support in the camera extensions."
+     bug: "316375635"
+}