jni: Resolve -Wwritable-strings warnings in helium FW library variables

* fixes: ISO C++11 does not allow conversion from string literal to 'char *'

Change-Id: I76de69d5c2fef3f53c5d57a4fc11b4d8f959ed93
1 file changed
tree: 095746d5227f65055550b1bea2e118223c037ee9
  1. fm_hci/
  2. fmapp2/
  3. helium/
  4. jni/
  5. qcom/