uqmi: Add support for specifying profile index

Update uqmi to latest version, which brings about support for
specifying a call profile index instead of APN. A specific index
different from 1 must be used for some service provider and modem
combinations.

Also change option dhcp to dhcpv6, since IPv4 now always uses DHCP,
replace option ipv6 with pdptype, which is less ambiguous, and
make autoconnect optional and default it to off for IPv6 due to it
not working with statically configured IPv6.

Signed-off-by: Matti Laakso <malaakso@elisanet.fi>