Backport fix for 5.15: hv: utils: add PTP_1588_CLOCK to Kconfig to fix build

[Petr Štetiar <ynezz@xxxxxxx>]

Hi,

I would like to ask for a backport of upstream commit 1dc2f2b81a6a ("hv:
utils: add PTP_1588_CLOCK to Kconfig to fix build") to 5.15 kernel series as
it fixes following build failure for me with 5.15.31:

 x86_64-openwrt-linux-musl-ld: drivers/hv/hv_util.o: in function `hv_timesync_deinit':
 linux-x86_64/linux-5.15.31/drivers/hv/hv_util.c:770: undefined reference to `ptp_clock_unregister'
 x86_64-openwrt-linux-musl-ld: drivers/hv/hv_util.o: in function `hv_timesync_init':
 linux-x86_64/linux-5.15.31/drivers/hv/hv_util.c:746: undefined reference to `ptp_clock_register'

Thanks!

Cheers,

Petr