Switch from HIDL DisplayCapability to AIDL

In preparation for adding a new DisplayCapability which is only in AIDL.
This change is almost completely mechanical, and should have no impact
on behavior.

Similar to I1f923fcc8d8e6dff388493a76e31d435638b5255 for Composition.

Bug: 193170859
Test: existing tests
Change-Id: I448d5d0ec71f99fb3cbfbe505ded40ab37f6083b
diff --git a/services/surfaceflinger/DisplayHardware/Hal.h b/services/surfaceflinger/DisplayHardware/Hal.h
index 7236868..bef617d 100644
--- a/services/surfaceflinger/DisplayHardware/Hal.h
+++ b/services/surfaceflinger/DisplayHardware/Hal.h
@@ -21,6 +21,7 @@
 #include <android/hardware/graphics/composer/2.4/IComposerClient.h>
 
 #include <aidl/android/hardware/graphics/composer3/Composition.h>
+#include <aidl/android/hardware/graphics/composer3/DisplayCapability.h>
 
 #define ERROR_HAS_CHANGES 5
 
@@ -55,7 +56,6 @@
 using ContentType = IComposerClient::ContentType;
 using Capability = IComposer::Capability;
 using ClientTargetProperty = IComposerClient::ClientTargetProperty;
-using DisplayCapability = IComposerClient::DisplayCapability;
 using DisplayRequest = IComposerClient::DisplayRequest;
 using DisplayType = IComposerClient::DisplayType;
 using HWConfigId = V2_1::Config;