[tosa] fix strided_slice legalization
Hi @rsuderman Can you please review this PR ? Thank you! Hi @Tai78641 Can you please resolve conflicts? Thank you! rebased
by skipping stride=1 dimensions in the reshape layer and avoid unnecessary rank blowup in the reshaped tensors.

Change-Id: I9b6f0220238d10d99125fef1f1db8ac58fabe71a
Signed-off-by: Tai Ly <tai.ly@arm.com>