camera: Clarify hot pixel map coordinate system when sensor pixel mode is MAXIMUM_RESOLUTION

Bug: 373252717

Test: m -j ds-docs-java

Flag: EXEMPT Docs only

Change-Id: Iffc30c684d5b98a3efb0f275f14cf03171a17700
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>