commit 5c0b8e0d upstream.

This patch fixes the big endian mode issue with function
xgene_ahci_read_id.
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>