Low Latency Input on Galaxy S10 is silent for MMAP Generic

Similar to issue #1229, different device & params.

Android version(s): 11
Android device(s): Samsung Galaxy S10
Model: SM-G973F/DS
Chipset: Samsung Exynos 9 Octa 9820 (based on [this](https://www.phonemore.com/specs/samsung/galaxy-s10/sm-g973fds-128gb/))
Oboe version: 1.6.0
App name used for testing: OboeTester

Tested using both TEST INPUT or RECORD AND PLAY.

Configured parameters:
```
Sample Rate: 16000
Channels: 1
Format: PCM_l16
Perf: LOW_LATENCY
InPreset: Generic
MMAP: Yes
Exclusive: Yes
Convert: SRC: High
```

When `Convert: SRC: High` is changed to `Convert: SRC: None`, recording looks fine (i.e: not silence) but the Low Latency mode is disabled (yet requested).

Also, when `MMAP: Yes` is changed to `MMAP: No`, recording looks fine and Low Latency mode is enabled. However, currently we want to avoid having some kind of device type check & disabling MMAP for some problematic devices in our software, as we don't know which devices are affected (other than Samsung S10 & Galaxy Note 20) and it seems that disabling MMAP requires access to an internal API.