[source] malta: mark as source-only to avoid wasting build resources

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/f781c8e11e8679b8e6043ee6b00c0677843beb6e

commit f781c8e11e8679b8e6043ee6b00c0677843beb6e
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Tue Jan 24 12:41:40 2017 +0100

    malta: mark as source-only to avoid wasting build resources
    
    The le64 and be64 subtargets do not share a package architecture with
    any other targets, so they are pretty wasteful for a development-only
    target.
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/malta/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/malta/Makefile b/target/linux/malta/Makefile
index 34818f1..caa51ea 100644
--- a/target/linux/malta/Makefile
+++ b/target/linux/malta/Makefile
@@ -12,7 +12,7 @@ CPU_TYPE:=24kc
 SUBTARGETS:=le be le64 be64
 INITRAMFS_EXTRA_FILES:=
 MAINTAINER:=Florian Fainelli <florian at openwrt.org>
-FEATURES:=ramdisk
+FEATURES:=ramdisk source-only
 
 KERNEL_PATCHVER:=4.4