Revert "arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO"

Revert "arm64: defconfig: Enable FSL_MC_BUS and FSL_MC_DPIO"

This reverts commit d9678adbe733a770428a98651beaa2817d503ed3.

Received below report from Stefan.
Revert the commit until CAAM driver dependency cycles are fixed.

this patch in next-20181214 breaks "make modules_install" for
arm64/defconfig on my Ubuntu machine:

DEPMOD  4.20.0-rc6-next-20181214
depmod: ERROR: Found 6 modules in dependency cycles!
depmod: ERROR: Cycle detected: caamalg_desc -> dpaa2_caam -> authenc
depmod: ERROR: Cycle detected: caamalg_desc -> dpaa2_caam -> fsl_mc_dpio
depmod: ERROR: Cycle detected: dpaa2_caam -> caamhash_desc -> dpaa2_caam
depmod: ERROR: Cycle detected: caamalg_desc -> dpaa2_caam -> caamhash_desc -> error
depmod: ERROR: Cycle detected: caamalg_desc -> dpaa2_caam -> caamhash_desc -> caamalg_desc

Reported-by: Stefan Wahren <[email protected]>
Signed-off-by: Horia Geantă <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>