arch: Kconfig: enable IRQ using select for x86 architecture

use 'select' to enable IRQ as it does not have architecture
specific dependency.

Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
Reviewed-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>