Revert "spi: microchip-core: fix init function not setting the master and motorola modes"

This reverts commit 99dab059 which is
commit 3a5e7628 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I46d93ecc53d873a566f2d3ef8a9e8acf3a09cc59
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>