RAB Assign for voice: heed the x213 nsap flag

Add use_x213_nsap arg to ranap_new_msg_rab_assign_voice() and
new_transp_info_rtp(). Pass this to new_transp_layer_addr() to compose 32bit
addresses when use_x213_nsap == false.

This is analogous to ranap_new_msg_rab_assign_data().

Particularly, the ip.access nano3G does not accept x213 NSAP 56bit addresses,
so we want to send 32bit addresses there.

Change-Id: I0c3c95d709c8a2b1c48d7a187faca34102226329
3 files changed