eglibc: enable parallel builds

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 34025

toolchain/eglibc/Makefile

 PATH_PREFIX := .
 VARIANT:=final
+HOST_BUILD_PARALLEL:=1
 
 include ./common.mk
 
 define Host/Compile
-	$(MAKE) -C $(CUR_BUILD_DIR) all
+	$(MAKE) -C $(CUR_BUILD_DIR) all PARALLELMFLAGS="$(HOST_JOBS)"
 endef
 
 define Host/Install