Bluetooth: hci_intel: Add check for platform_driver_register

stable inclusion
from stable-v5.10.137
commit 0c5dbac1ce7f82db4472b47e73654a8856fb707a
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I60PLB

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0c5dbac1ce7f82db4472b47e73654a8856fb707a



--------------------------------

[ Upstream commit ab2d2a98 ]

As platform_driver_register() could fail, it should be better
to deal with the return value in order to maintain the code
consisitency.

Fixes: 1ab1f239 ("Bluetooth: hci_intel: Add support for platform driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: Wei Li <liwei391@huawei.com>