x86_64: Enable pci on the command line.

Change-Id: I73f77dfbd1d76ed94e6ae9645fa7c0a6fab0337a
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1085250
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
diff --git a/x86_64/src/lib.rs b/x86_64/src/lib.rs
index 763f71b..f78632d 100644
--- a/x86_64/src/lib.rs
+++ b/x86_64/src/lib.rs
@@ -314,7 +314,7 @@
     /// This returns a minimal kernel command for this architecture
     fn get_base_linux_cmdline() -> kernel_cmdline::Cmdline {
         let mut cmdline = kernel_cmdline::Cmdline::new(CMDLINE_MAX_SIZE as usize);
-        cmdline.insert_str("console=ttyS0 noacpi reboot=k panic=1 pci=off").
+        cmdline.insert_str("console=ttyS0 noacpi reboot=k panic=1").
             unwrap();
         cmdline
     }