libcameraservice: Fix ALOG prints in FlashLight.

Add missing __FUNCTION__ arguments into log statements.

Ack by: Dilip Gopalakrishna

Bug: 25023187
Change-Id: I0256bad626d490fb9360a73c104afaad7a012a97
diff --git a/services/camera/libcameraservice/CameraFlashlight.cpp b/services/camera/libcameraservice/CameraFlashlight.cpp
index e42c596..406c1c4 100644
--- a/services/camera/libcameraservice/CameraFlashlight.cpp
+++ b/services/camera/libcameraservice/CameraFlashlight.cpp
@@ -99,7 +99,8 @@
 
 status_t CameraFlashlight::setTorchMode(const String8& cameraId, bool enabled) {
     if (!mFlashlightMapInitialized) {
-        ALOGE("%s: findFlashUnits() must be called before this method.");
+        ALOGE("%s: findFlashUnits() must be called before this method.",
+               __FUNCTION__);
         return NO_INIT;
     }
 
@@ -200,7 +201,8 @@
 
 bool CameraFlashlight::hasFlashUnitLocked(const String8& cameraId) {
     if (!mFlashlightMapInitialized) {
-        ALOGE("%s: findFlashUnits() must be called before this method.");
+        ALOGE("%s: findFlashUnits() must be called before this method.",
+               __FUNCTION__);
         return false;
     }
 
@@ -219,7 +221,8 @@
 
     Mutex::Autolock l(mLock);
     if (!mFlashlightMapInitialized) {
-        ALOGE("%s: findFlashUnits() must be called before this method.");
+        ALOGE("%s: findFlashUnits() must be called before this method.",
+               __FUNCTION__);
         return NO_INIT;
     }
 
@@ -256,7 +259,8 @@
 
     Mutex::Autolock l(mLock);
     if (!mFlashlightMapInitialized) {
-        ALOGE("%s: findFlashUnits() must be called before this method.");
+        ALOGE("%s: findFlashUnits() must be called before this method.",
+               __FUNCTION__);
         return NO_INIT;
     }