Remove 85xx NPI/Boards, P102x combo board and P1023RDS board

These boards were not tested with latest released sdk 1.4 codes
(kernel, u-boot, etc.). To avoid confusion and potential error,
detete these machines from master/dylan branch of this layer.

If anyone want to use them, please use danny/denzil/edison branch.

Signed-off-by: Chunrong Guo <B40290@freescale.com>
testfloat: mark as fsl e500v2 machine only

The customized do_{compile,install} tasks are only available after
applying the three patches which are e500v2 specific.

Signed-off-by: Ting Liu <b28495@freescale.com>
Reviewed-by: Otavio Salvador <otavio@ossystems.com.br>