data-kernel: EMAC: Disable c-tile power collapse

Disable c-tile PC from EMAC driver.
This stops EMAC power collapse in XO-shutdown.

CRs-Fixed: 2240286
Change-Id: I6177907449ff7e8a29309031bee37c3c2a91004f
Acked-by: Rahul Kawadgave <rahulak@qti.qualcomm.com>
Signed-off-by: Sunil Paidimarri <hisunil@codeaurora.org>