[source] armvirt: add kernel config change missing from 0d44f0cb

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/dcd83573650e0ffe9621a9753ecfd19a288c1090

commit dcd83573650e0ffe9621a9753ecfd19a288c1090
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Fri Jan 13 10:56:29 2017 +0100

    armvirt: add kernel config change missing from 0d44f0cb
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/armvirt/config-default | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/armvirt/config-default b/target/linux/armvirt/config-default
index 46e157c..0cee053 100644
--- a/target/linux/armvirt/config-default
+++ b/target/linux/armvirt/config-default
@@ -237,6 +237,7 @@ CONFIG_SYS_SUPPORTS_APM_EMULATION=y
 CONFIG_TICK_CPU_ACCOUNTING=y
 CONFIG_TREE_RCU=y
 CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
+CONFIG_USB_SUPPORT=y
 CONFIG_USE_OF=y
 CONFIG_VECTORS_BASE=0xffff0000
 CONFIG_VFP=y