pinctrl: Fix emac PPS func_sel

Fix the emac_pps func_sel as per IPCAT.
Currently It is configuaring func_sel 8 for
emac_pps which is incorrect as per IPCAT. This should
be 6.

Change-Id: I24ca25bd45680e399073d0b4886a400e0c3bc094
Acked-by: Nagarjuna Chaganti <nchagant@qti.qualcomm.com>
Signed-off-by: Suraj Jaiswal <jsuraj@codeaurora.org>