Enable Low-end device mode in browser process on android

The issue is caused by accessing the kLowMemoryDeviceThresholdMBfeature
in sys_info.cc(within the browser process) too early - before the
FeatureList has been initialized. As a result, the correct value cannot
be retrieved.​

Bug: 447871698
Change-Id: Ie91748d6b74840502472492e1b5ad3d8498f494c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7002458
Reviewed-by: Boris Sazonov <bsazonov@chromium.org>
Reviewed-by: Francois Pierre Doray <fdoray@chromium.org>
Commit-Queue: Wenbin Liu <liuwenbin@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#1527878}