Add frameworks-telephony test cases for CDMA SMS.

Add test cases to verify support for Shift-JIS encoding/decoding
for CDMA SMS BearerData. Also test whether reserved bearer data
subparameters are properly skipped.

$ runtest -c com.android.internal.telephony.cdma.sms.CdmaSmsTest \
    frameworks-telephony

The original version of this patch did not merge from AOSP to the
internal tree because of changes to mock RIL files that have been
removed. This patch contains only the change to CdmaSmsTest.java.

Change-Id: Ib51d99c73c636467b970327e5c6af2d6a289c651