make: aidl: Disable all lints for auto-generated Rust code

This matches Soong's configuration for
auto-generated Rust code.

Bug: 389656759
Test: build.py qemu-generic-arm64-gicv3-test-debug
Change-Id: I73bdd574536d978c215e32fc8934b809ef26ac7e

make/aidl.mk

diff --git a/make/aidl.mk b/make/aidl.mk
index 296ff4c..b88f023 100644
--- a/make/aidl.mk
+++ b/make/aidl.mk
@@ -126,8 +126,8 @@
 	$(call FIND_CRATE,async-trait) \
 	$(call FIND_CRATE,lazy_static) \
 
-# The AIDL compiler marks an aidl_data variable as mutable and rustc complains
-MODULE_RUSTFLAGS += -Aunused-mut -Aunused-variables
+# Disable all lints for auto-generated Rust sources
+MODULE_RUSTFLAGS += --cap-lints allow
 
 MODULE_SRCS += $(AIDL_ROOT_RS)
 MODULE_EXPORT_SRCDEPS += $(AIDL_ROOT_RS)