global: Migrate CONFIG_PCIE_IMX_PERST_GPIO to CFG

Perform a simple rename of CONFIG_PCIE_IMX_PERST_GPIO to CFG_PCIE_IMX_PERST_GPIO

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/novena.h b/include/configs/novena.h
index dc5b043..6f4353e 100644
--- a/include/configs/novena.h
+++ b/include/configs/novena.h
@@ -41,7 +41,7 @@
 
 /* PCI express */
 #ifdef CONFIG_CMD_PCI
-#define CONFIG_PCIE_IMX_PERST_GPIO	IMX_GPIO_NR(3, 29)
+#define CFG_PCIE_IMX_PERST_GPIO	IMX_GPIO_NR(3, 29)
 #define CONFIG_PCIE_IMX_POWER_GPIO	IMX_GPIO_NR(7, 12)
 #endif