[TOSA] Update tosa.reshape's shape as a !tosa.shape input

* Update tosa.reshape's `shape` attribute as an input with !tosa.shape
  type.
* Update LIT tests.

Signed-off-by: Justin Ngo <[email protected]>
Change-Id: I72a9989912356895029787ff1f91d382e1de368a

Author: justin-ngo-arm