set default cdma subscription to RUIM

Change-Id: I010f5d972412e13fbc19f2a9ddfda3539c2c7e60
defconfig is now commnized in d2-common

Change-Id: I49c0853375ee0b8216e0a7f86aa67d8ccc2cfebd

Conflicts:
	BoardConfig.mk

Change-Id: Ia4cde6abcf04d48aad0432ea3b8e477a2c5d8363