soc: hisilicon: kunpeng_hccs: replace MAILBOX dependency with PCC

The kunpeng_hccs driver depends on the Platform Communication Channel
Driver. If the PCC driver is not enabled, this driver will be failed
to probe. And since the PCC driver depends on the MAILBOX, replace
the MAILBOX dependency with the PCC.
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

drivers/soc/hisilicon/Kconfig

@@ -6,7 +6,7 @@ menu "Hisilicon SoC drivers"
 config KUNPENG_HCCS
 	tristate "HCCS driver on Kunpeng SoC"
 	depends on ACPI
-	depends on MAILBOX
+	depends on PCC
 	depends on ARM64 || COMPILE_TEST
 	help
 	  The Huawei Cache Coherence System (HCCS) is a multi-chip