kernel: Disable drivers unused HW functionality

I don't expect that CzechLight will get a microphone anytime soon.

Change-Id: I5e82718e83698465c695b6f3d706cc4fce6e5725
diff --git a/board/czechlight/common/kconfig b/board/czechlight/common/kconfig
index c7315aa..b80ea49 100644
--- a/board/czechlight/common/kconfig
+++ b/board/czechlight/common/kconfig
@@ -36,3 +36,11 @@
 CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_CFS_BANDWIDTH=y
 CONFIG_RT_GROUP_SCHED=n
+
+# These are not needed, let's nuke them
+CONFIG_SOUND=n
+CONFIG_MD=n
+CONFIG_MACINTOSH_DRIVERS=n
+CONFIG_USB_NET_DRIVERS=n
+CONFIG_WLAN=n
+CONFIG_FDDI=n