Merge cros/upstream to cros/master

Contains the following commits:
 52994bd build: version bump to flag existence of new API (network reject) (Aleksander Morgado)
 49dc253 collection,basic: add 'NAS Network Reject' (Aleksander Morgado)
 c1792f4 nas: update "System Info" response/indications with QmiNasRejectCause (Aleksander Morgado)
 3feeb4e nas: support 'Network Reject' indications (Aleksander Morgado)
 1878b72 nas: update 'Register Indications' to allow network reject indications (Aleksander Morgado)
 3a194b6 nas: reorder 'Force Network Search' request in list (Aleksander Morgado)
 843cc1e build: version bump to flag existence of new API (aggregation protocols) (Aleksander Morgado)
 c083b29 libqmi-glib,net-port-manager,rmnet: include missing string.h (Aleksander Morgado)
 76b2e73 libqmi-glib,helpers: import ptr array lookup with GEqualFunc from GLib 2.54 (Aleksander Morgado)
 7b8427c qmicli,nas: add --nas-get-preferred-networks/--nas-set-preferred-networks (Teijo Kinnunen)
 e090065 qmicli,helpers: return PCS digit status in qmicli_read_parse_3gpp_mcc_mnc (Teijo Kinnunen)
 715e67c libqmi-glib,net-port-manager: fix build with GLib 2.48 (Aleksander Morgado)
 bb7377e libqmi-glib,wda: add new aggregation protocol values (Aleksander Morgado)
 8390cdc libqmi-glib,enums: add new data endpoint type values (Aleksander Morgado)
 15513cd docs: add api index for 1.30 (Aleksander Morgado)
 04c5a19 libqmi-glib,nas: implement "Get/Set Preferred Networks" (Teijo Kinnunen)
 a93104e libqmi-glib,net-port-manager-qmiwwan: simplify add/del operations (Aleksander Morgado)
 e5b7aa9 build: add version bump logic to releasing notes (Aleksander Morgado)
 926385e build: improve releasing notes (Aleksander Morgado)
 ea9b427 build: post-release version bump to 1.29.0 (Aleksander Morgado)
 0d5f4f7 release: bump version to 1.28.0 (Aleksander Morgado)

Cq-Depend: chromium:2729263
Change-Id: I884d077d0e604ae8baf9151d096d18e06929cf29