CameraNDK: remove unused error enum values

and fill in documents for each error value.

Bug: 27102995
Change-Id: Ia44f87c09758f098442f894f4236ce8fa2ccffb3
diff --git a/camera/ndk/impl/ACameraDevice.cpp b/camera/ndk/impl/ACameraDevice.cpp
index bff5547..7d78e2b 100644
--- a/camera/ndk/impl/ACameraDevice.cpp
+++ b/camera/ndk/impl/ACameraDevice.cpp
@@ -129,7 +129,7 @@
             hardware::ICameraService::ERROR_ILLEGAL_ARGUMENT) {
         ALOGW("Create capture request failed! template %d is not supported on this device",
             templateId);
-        return ACAMERA_ERROR_UNSUPPORTED;
+        return ACAMERA_ERROR_INVALID_PARAMETER;
     } else if (!remoteRet.isOk()) {
         ALOGE("Create capture request failed: %s", remoteRet.toString8().string());
         return ACAMERA_ERROR_UNKNOWN;