clocksource/drivers/stm32-lp: Drop of_match_ptr for ID table

The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it might not be relevant here).

drivers/clocksource/timer-stm32-lp.c:203:34: error: ‘stm32_clkevent_lp_of_match’ defined but not used [-Werror=unused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Daniel Lezcano <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/clocksource/timer-stm32-lp.c

···
 	.probe  = stm32_clkevent_lp_probe,
 	.driver	= {
 		.name = "stm32-lptimer-timer",
-		.of_match_table = of_match_ptr(stm32_clkevent_lp_of_match),
+		.of_match_table = stm32_clkevent_lp_of_match,
 		.suppress_bind_attrs = true,
 	},
 };