am ae29ac17: am 572e0087: Merge change Idfc116fe into eclair

Merge commit 'ae29ac179ee579234ecc6ed590e00d30831e02f8' into eclair-mr2-plus-aosp

* commit 'ae29ac179ee579234ecc6ed590e00d30831e02f8':
  Return null if SIM doesn't have the MSISDN Aplha tag.