[source] toolchain/musl: parallelize make install

[LEDE Commits]

jow pushed a commit to source.git, branch lede-17.01:
https://git.lede-project.org/a33b0ced78035528cb8334c3f12e162f83521b03

commit a33b0ced78035528cb8334c3f12e162f83521b03
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Thu Feb 9 13:35:51 2017 +0100

    toolchain/musl: parallelize make install
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
    (cherry picked from commit 43332f513baf35e2bcd3285d7c93d592001943f6)
---
 toolchain/musl/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/toolchain/musl/Makefile b/toolchain/musl/Makefile
index 1533f51..2b9312b 100644
--- a/toolchain/musl/Makefile
+++ b/toolchain/musl/Makefile
@@ -24,7 +24,7 @@ endef
 
 define Host/Install
 	$(call Host/SetToolchainInfo)
-	$(MAKE) $(MUSL_MAKEOPTS) DESTDIR="$(TOOLCHAIN_DIR)/" install
+	+$(MAKE) $(HOST_JOBS) $(MUSL_MAKEOPTS) DESTDIR="$(TOOLCHAIN_DIR)/" install
 	$(CP) ./include $(TOOLCHAIN_DIR)/
 endef