Add prime shape coverage to SELECT and other ops

Operators covered: SELECT, GATHER, SCATTER.
Added to fp32, bf16, or fp8e4m3 and fp8e5m2 depending on the operator.

Signed-off-by: Ian Tayler Lessa <ian.taylerlessa@arm.com>
Change-Id: I4bdf8d86e2c641a0d721b282f034c066293a54a1