Allow update the max lines on the title

Bug: 356726764
Test: manually tested the color correction screen in Deutsch and verify
text are not truncated
Test: verify the Wifi Hotspot sceurity screen is not affected by this
change (still have 2 as the max lines of the title)
Test: atest SelectorWithWidgetPreferenceTest
Flag: com.android.settingslib.widget.selectorwithwidgetpreference.flags.allow_set_title_max_lines

Change-Id: I0066a94362f06280b5e9e7ed627e4b3f6b5f5360