InCallUI: Keep button states in sync with call properties

In change I9359aaaa44b89f5937cc1a7d9fbd5fe25c71133d the interface
update logic was introduced to reflect the supported audio route
change. However, on devices with call recorder support, this
change has introduced a regression hiding the "More" button from
the CallButtonFragment. This change fixes that regression.

Reported-By: Evgen Stenkin <stenkinevgeniy@gmail.com>
Signed-off-by: Vasyl Gello <vasek.gello@gmail.com>
Verified-By: ShevT <shev_t@mail.ru>
Change-Id: I3b022005dfd0ea7b23ec4c351f65ac07b6604956