dm36x: revert cache disable patch

revert commit 98c19aff9524e1d0dd6bf39bf7bde5644f121feb as the
disabling of cache need not be done explicitly. Subsequent
patches to new cache management framework has fixed it.
EMAC issue with cache coherency still exists when cahces are
enabled.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
1 file changed