Camera: Do not update state at HAL starts up if state already exists

This is to handle lazy hal, where cameraserver doesn't know HAL goes
away.

Test: Observe that the between QS Torch Tile and Camera App is correct.
Bug: 79374634
Merged-In: I2f802b1c409ba3581f0fcacfc0ac5f6059391139
Change-Id: I2f802b1c409ba3581f0fcacfc0ac5f6059391139

services/camera/libcameraservice/CameraService.cpp

@@ -181,7 +181,9 @@ status_t CameraService::enumerateProviders() {
 
     for (auto& cameraId : deviceIds) {
         String8 id8 = String8(cameraId.c_str());
-        onDeviceStatusChanged(id8, CameraDeviceStatus::PRESENT);
+        if (getCameraState(id8) == nullptr) {
+            onDeviceStatusChanged(id8, CameraDeviceStatus::PRESENT);
+        }
     }
 
     return OK;