aspeed: Enable Pinctrl Driver in AST2500 EVB

Enable Pinctrl Driver in AST2500 Eval Board's defconfig

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/evb-ast2500_defconfig b/configs/evb-ast2500_defconfig
index 74808a7..f8ef9b7 100644
--- a/configs/evb-ast2500_defconfig
+++ b/configs/evb-ast2500_defconfig
@@ -17,3 +17,4 @@
 CONFIG_TIMER=y
 CONFIG_WDT=y
 CONFIG_DM_RESET=y
+CONFIG_PINCTRL=y