Main fixes:

Added explicit casts (e.g. 0U) to integers in order for them to be
compatible with whatever operation they're used in [Rule 10.1]

convert object type to match the type of function parameters
[Rule 10.3]

Force operands of an operator to the same type category [Rule 10.4]

Fix implicit widening of composite assignment [Rule 10.6]

Change-Id: I5840a07f37beefc3326ac56d0b4a4701602bd8a8
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>