mlxbf_gige: fix white space in mlxbf_gige_eth_ioctl

This patch fixes the white space issue raised by checkpatch:
CHECK: Alignment should match open parenthesis
+static int mlxbf_gige_eth_ioctl(struct net_device *netdev,
+                              struct ifreq *ifr, int cmd)
Signed-off-by: NDavid Thompson <davthompson@nvidia.com>
Signed-off-by: NAsmaa Mnebhi <asmaa@nvidia.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>