[source] mountd: allow build without USB_SUPPORT

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/96daf6352f6e04bc22789466cb5409b93fbec191

commit 96daf6352f6e04bc22789466cb5409b93fbec191
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Wed Jan 11 18:04:18 2017 +0100

    mountd: allow build without USB_SUPPORT
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 package/system/mountd/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/system/mountd/Makefile b/package/system/mountd/Makefile
index 6922f2f..28172b3 100644
--- a/package/system/mountd/Makefile
+++ b/package/system/mountd/Makefile
@@ -23,7 +23,7 @@ define Package/mountd
   SECTION:=utils
   CATEGORY:=Utilities
   TITLE:=OpenWrt automount daemon
-  DEPENDS:=@USB_SUPPORT +uci +kmod-usb-storage +kmod-fs-autofs4
+  DEPENDS:=+USB_SUPPORT:kmod-usb-storage +uci +kmod-fs-autofs4
   URL:=http://www.openwrt.org
 endef