Fix CdmsSmsTests and NPE in CdmaSmsAddress parsing

When CdmaSmsAddress parse fails to encode in 4bit, it tries in 8
bit char. Previous call to filterNumericSugar could have nullified
the filtered address causing NPE. Fix issue by calling
filterWhiteSpace(address) only when filteredAddr is null. When
filteredAddr is not null, it would already have been removed of
any whitespaces and need not call filteredWhitespace() again. This
change also fixes test values causing failures of CdmaSmsTest

Change-Id: Ia1ce0c54b5482540da8b94e86c2be4b24b3cb9e9
CRs-Fixed: 389695