soc: renesas: pwc-rzv2m: 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).  This
also fixes a !CONFIG_OF error with W=1:

    drivers/soc/renesas/pwc-rzv2m.c:124:34: error: ‘rzv2m_pwc_of_match’ defined but not used [-Werror=unused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230312132650.352796-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: krzk

drivers/soc/renesas/pwc-rzv2m.c

@@ -131,7 +131,7 @@ static struct platform_driver rzv2m_pwc_driver = {
 	.probe = rzv2m_pwc_probe,
 	.driver = {
 		.name = "rzv2m_pwc",
-		.of_match_table = of_match_ptr(rzv2m_pwc_of_match),
+		.of_match_table = rzv2m_pwc_of_match,
 	},
 };
 module_platform_driver(rzv2m_pwc_driver);