Revert "ARM: dts: msm: Disable SPI CAN controller on msm8996 CV2X boards"

This reverts commit a8c85fc7.
Reverted because support for MPC5746C SPI-CAN is being
added back to the platform.

Change-Id: Ib14caf39a8cba9c6028abceb85adcd43df53ba06
Signed-off-by: Gustavo Solaira <gustavos@codeaurora.org>