Support remote submix for 44.1kHz

E-AC3-JOC in IEC61937 via remote submix requires 192kHz sample rate.
As a precursor patch, add non default (i.e. 44.1kHz) remote submix
support.

Bug: 311830316
Test: atest audiorouting_tests audiopolicy_tests VirtualAudioTest
Change-Id: Ia711e0c6de63aaeb117b5eeb84224b245792bafe