Change index of carrier_settings_euicc_key

Since we need to user EuiccManager#ACTION_MANAGE_EMBEDDED_SUBSCRIPTIONS
to start the activity of this key, this CL moves the index of this key
from queryXmlResources to queryRawData.

Bug: 36525840
Test: TeleServiceTests
Merged-In: I2912a1d221eaaff1e8e56f290c0ce3ce9d5e6653
Change-Id: I2912a1d221eaaff1e8e56f290c0ce3ce9d5e6653
4 files changed