platform: tegra: emc: Fix logic in EMC CC

platform: tegra: emc: Fix logic in EMC CC

Fix some logic in the EMC clock change. The problem was that a bitwise and
operation was compared against the literal value 1. The idea was to actually
test if the bit was set.

Bug 1416640

Change-Id: Ib30c36bb59206b1637ff1fe0443b918c2e493ebe
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/791570
Reviewed-by: Robert Shih <rshih@nvidia.com>
Tested-by: Robert Shih <rshih@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Steve Rogers <srogers@nvidia.com>