Create components/autofill/core/browser/suggestions

See go/components-autofill-restructure. This CL was auto-generated using
the following commands:

DIR=components/autofill/core/browser
mkdir $DIR/suggestions
mkdir $DIR/suggestions/addresses
mkdir $DIR/suggestions/payments
git mv $DIR/address_suggestion_generator*
       $DIR/suggestions/addresses/
git mv $DIR/payments_suggestion_generator*
       $DIR/suggestions/payments/
git mv $DIR/suggestions_context.* $DIR/suggestions
./tools/git/mass-rename.py
git cl format

Bug: 376223525
Change-Id: I76a7c98de3afcd893d07b9a452fbc4f33c89d21c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6037998
Reviewed-by: Bruno Braga <brunobraga@google.com>
Commit-Queue: Florian Leimgruber <fleimgruber@google.com>
Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1388281}