camera 2.4: conditionally disable memory init

This needs to be disabled on Pixel 3, but this is the only place w/
source code visible in AOSP. So, it is implemented as a mechanism.

Bug: 166675194
Test: atest android.hardware.camera2.cts.PerformanceTest
Change-Id: I0d91389432906a917696d27d27b4d6d96e64d09f

camera/provider/2.4/default/Android.bp

@@ -76,7 +76,7 @@ cc_library_shared {
     header_libs: [
         "camera.device@3.4-external-impl_headers",
         "camera.device@3.5-external-impl_headers",
-        "camera.device@3.6-external-impl_headers"
+        "camera.device@3.6-external-impl_headers",
     ],
     export_include_dirs: ["."],
 }
@@ -150,6 +150,7 @@ cc_defaults {
         "android.hidl.memory@1.0",
         "libbinder",
         "libcamera_metadata",
+        "libcutils",
         "libhardware",
         "libhidlbase",
         "liblog",

camera/provider/2.4/default/service.cpp

@@ -22,6 +22,8 @@
 
 #include <android/hardware/camera/provider/2.4/ICameraProvider.h>
 #include <binder/ProcessState.h>
+#include <cutils/memory.h>
+#include <cutils/properties.h>
 #include <hidl/LegacySupport.h>
 
 using android::status_t;
@@ -41,6 +43,12 @@ int main()
     // The camera HAL may communicate to other vendor components via
     // /dev/vndbinder
     android::ProcessState::initWithDriver("/dev/vndbinder");
+
+    // b/166675194
+    if (property_get_bool("ro.vendor.camera.provider24.disable_mem_init", false)) {
+        process_disable_memory_mitigations();
+    }
+
     status_t status;
     if (kLazyService) {
         status = defaultLazyPassthroughServiceImplementation<ICameraProvider>("legacy/0",