msm: ehci-hsic: Don't change DEVICE name from driver

Some userspace scripts and other kernel modules may perform
binding/unbinding of HSIC driver at runtime.
Since, device name (also used for device-driver binding) may
change across targets if HSIC core is mapped at different address
and they use device tree for the configuration.
To overcome this driver currently overrides pdev->device name from
its probe routine but doesn't change pdev->name. This results in
pdev->name becoming a dangling pointer as the memory is freed by
dev_set_name call. Get rid of this code changing dev.name and
let the targets's board file override this using AUX_DATA mechanism.

CRs-fixed: 568103
Change-Id: I755044e8c73064c2c13dbb6e8e1002f38c9379e0
Signed-off-by: Manu Gautam <mgautam@codeaurora.org>