ApfV4GeneratorBase: add{Add,And,Or} should take a long

(otherwise you cannot simply pass in 4 billion)

See also:
  $ git grep ' newTwosComplement(Uns|S)igned'
    public static IntImmediate newTwosComplementUnsigned(long imm) {
    public static IntImmediate newTwosComplementSigned(long imm) {
which proves these *should* have always taken a long.

Tested: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I74531df29d535da282707e7a097de6412ba3e969