Update PCO handling code such that it conforms to the latest VZW network
behavior. This includes updating the way we mark a SIM as provisioned.
In the old network, only provisioned SIMs can attach to the network.
Now, unprovisioned SIMs can attach and connect to the network.
Change-Id: Ie454f6fb6d8764161f167e93a4235bb93fbde59a
Due to a firmware issue, the modem may reply an invalid band value, such
as 0, for the %BANDCAP or %GETCFG="BAND" command. This patch moves
parse_bands_response() to mm-modem-helpers-altair-lte.c, modifies the
function to ignore any invalid band outside the range of E-UTRAN
operating bands, and add unit tests for the function.
This patch uses the extended error code after a registration failure to
determine if the SIM in the relevant modem is associated with a non-provisioned
account. It uses the standard AT+CEER command, but the implementation is
restricted to the altair plugin.
