configs: mt7622: add PCIe controller related configs

Add PCIe command and related configs

diff --git a/configs/mt7622_rfb_defconfig b/configs/mt7622_rfb_defconfig
index 9ab621d..fa2b4f9 100644
--- a/configs/mt7622_rfb_defconfig
+++ b/configs/mt7622_rfb_defconfig
@@ -14,6 +14,7 @@
 CONFIG_CMD_BOOTMENU=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_SF_TEST=y
+CONFIG_CMD_PCI=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_SMC=y
 CONFIG_ENV_OVERWRITE=y
@@ -53,3 +54,6 @@
 CONFIG_WDT_MTK=y
 CONFIG_LZO=y
 CONFIG_HEXDUMP=y
+CONFIG_PCI=y
+CONFIG_DM_PCI=y
+CONFIG_PCIE_MEDIATEK=y