CMAccount: fix hideThemeSwitch comparison logic

Change-Id: Ida60077171e2e70aa86ad1f44effc01fdcf52326
Signed-off-by: Roman Birg <roman@cyngn.com>
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_apps_CMAccount into cm-11.0