Revert "spi: axi-spi-engine: use devm_spi_alloc_host()"

This reverts commit 657f2117 which is
commit e12cd96e 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: I824a44e8263704363b2594f588f73c3e174c46f7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>