Update RILConstants.java

Fix RIL_UNSOL_CDMA_PRL_CHANGED constant typo
Change-Id: I6eef9350fa62857cb5fd133a385cb09150cb6d1b
Merge pull request #33 from bangsti/patch-1

Update RILConstants.java
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1