i2c: tegra-vi: powergate only when partition is ON

i2c: tegra-vi: powergate only when partition is ON

Both i2c-vi and host-vi are in VE power domain.
During boot stage, interlaced acessing may occur and
cause negative reference count

Bug 200159379

Change-Id: Iee523b7b3084f0ac890bd47b81738152f064ec41
Signed-off-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-on: http://git-master/r/843497
Reviewed-by: Nine Feng <nfeng@nvidia.com>
Tested-by: Nine Feng <nfeng@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Jihoon Bang <jbang@nvidia.com>