Convert CONFIG_CMD_IRQ to Kconfig

This converts the following to Kconfig:
   CONFIG_CMD_IRQ

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/controlcenterd_TRAILBLAZER_DEVELOP_defconfig b/configs/controlcenterd_TRAILBLAZER_DEVELOP_defconfig
index 0b7d12c..614cdb6 100644
--- a/configs/controlcenterd_TRAILBLAZER_DEVELOP_defconfig
+++ b/configs/controlcenterd_TRAILBLAZER_DEVELOP_defconfig
@@ -16,6 +16,7 @@
 # CONFIG_CMD_SETEXPR is not set
 # CONFIG_CMD_HASH is not set
 CONFIG_CMD_TPM=y
+# CONFIG_CMD_IRQ is not set
 CONFIG_DOS_PARTITION=y
 CONFIG_DM=y
 # CONFIG_PCI is not set