Fix sysui-studio build broken by ag/21408305.

This CL fixes the following sysui-studio build error:
```
Execution failed for task ':SystemUILib:packageDebugResources'.
> /usr/local/google/home/xilei/android_platform/tm-qpr-dev/frameworks/base/packages/SystemUI/res/values/strings.xml: Error: Found item String/security_settings_sfps_enroll_find_sensor_message more than one time
```

Looks like these need to be in res-product/ instead of res/, in order
for the filtering script to work. Filtering script:
  studio-dev/SysUIGradleProject/buildSrc/src/main/groovy/FilterResourcesTask.groovy

Bug: 236188940
Bug: 267407905
Test: build in sysui-studio.
Test: build with `m`
Change-Id: Ia940c0d6f68ddd793aa7d27ea33f33fffcabce47