regulator: Further restrict RZG2L USB VBCTRL regulator dependencies

Since the regulator can't be used without the USB controller also
tighten the dependency to match, as well as the default.
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://patch.msgid.link/20240726-regulator-restrict-rzg2l-v1-1-640e508896e2@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/Kconfig

@@ -1636,7 +1636,7 @@ config REGULATOR_UNIPHIER
 
 config REGULATOR_RZG2L_VBCTRL
 	tristate "Renesas RZ/G2L USB VBUS regulator driver"
-	depends on ARCH_RZG2L || COMPILE_TEST
+	depends on RESET_RZG2L_USBPHY_CTRL || COMPILE_TEST
 	depends on OF
 	select REGMAP_MMIO
 	default RESET_RZG2L_USBPHY_CTRL