LTE Toggle: add missing network mode NT_MODE_LTE_WCDMA

Change-Id: I93db32d4700568d79230350ff67e5dc0227a0c30
Signed-off-by: Jonathan Steadman <xxwhitehawk@gmail.com>

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/toggles/LteToggle.java
	telephony/java/com/android/internal/telephony/PhoneConstants.java