radio: iris: Use #define to declare numerical constants

* Declaring these as actual types causes duplicate symbol problems
  when compiling IRIS as a kernel builtin.

Change-Id: Id180bc196caaa12d0755a9159af9660419558a56
Merge branch 'cm-11.0' of github.com:CyanogenMod/android_kernel_htc_msm8960 into cm-11.0