Add support for `double` typed carrier config am: 1edea9efa6 am: b70d999b90

Original change: https://android-review.googlesource.com/c/platform/tools/carrier_settings/+/2075918

Change-Id: Ib8a9d16964954b3cf525baa8b1ea0c3d358a137a
Signed-off-by: Automerger Merge Worker <[email protected]>