usb: typec: ucsi: make yoga_c630_ucsi_ops be static

sparse warnings:
drivers/usb/typec/ucsi/ucsi_yoga_c630.c:101:30: sparse: sparse:
symbol 'yoga_c630_ucsi_ops' was not declared. Should it be static?

Add static to fix sparse warnings.

Reported-by: kernel test robot <[e-mail]>
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Signed-off-by: Pei Xiao <[e-mail]>
Link: https://lore.kernel.org/r/c[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/typec/ucsi/ucsi_yoga_c630.c

···
 	return yoga_c630_ec_ucsi_write(uec->ec, (u8*)&command);
 }
 
-const struct ucsi_operations yoga_c630_ucsi_ops = {
+static const struct ucsi_operations yoga_c630_ucsi_ops = {
 	.read_version = yoga_c630_ucsi_read_version,
 	.read_cci = yoga_c630_ucsi_read_cci,
 	.read_message_in = yoga_c630_ucsi_read_message_in,