tree e56d4456ff9486fab5e544e84c0bc462adb46e89
parent bc58b66d3f8b0ab8e59ab39b6938c79d673c5a2f
author Borjan Tchakaloff <borjan@fairphone.com> 1486743853 +0100
committer Borjan Tchakaloff <borjan@fairphone.com> 1487092494 +0100

Disable the network type selection if the other SIM wants 3G or 4G

TODO: This is a hackish way to handle the device hardware limitation (only one
SIM card connected to a >2G network at once), the user should be informed of the
limitation and still be offered to register their preference.

Disable the button if all conditions are met:
- there are two SIM cards;
- the other SIM card is using a network >2G (so 3G or 4G);
- the current SIM card is using a 2G network;
- the current SIM card prefers 2G OR has no preference set.

Any other combination should be considered inconsistent. If it happens, it is
likely to be a special case such as during development, so let it be.

FPIIM-300

Change-Id: I942ee1d51ad3b5cec7076341d7b1d4ec86a20cfe