irqbalance: upgrade to 1.6.0

Upgraded from 1.2.0 to 1.6.0 to pick up
all the latest fixes and improvements

irqbalance made glib2 mandatory since 1.3.0, but is
using very little of it. glib2 linked statically
to minimize the impact.

1.2.0 size: 33,619
1.6.0 size: 99,539

~# irqbalance --version
	irqbalance version 1.6.0

~# ldd /usr/sbin/irqbalance
	/lib/ld-musl-armhf.so.1 (0xb6f5f000)
	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb6f43000)
	libc.so => /lib/ld-musl-armhf.so.1 (0xb6f5f000)

~# opkg info irqbalance
	Package: irqbalance
	Version: 1.6.0-6
	Depends: libc
	Status: install user installed
	Architecture: arm_cortex-a7_neon-vfpv4
	Installed-Time: 1582839249

Compile-tested: ipq806x/R7800 & ipq40xx/GL-B1300
Run-tested:     ipq806x/R7800 & ipq40xx/GL-B1300

Signed-off-by: Marc Benoit <marcb62185@gmail.com>

utils/irqbalance/Makefile

@@ -5,14 +5,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=irqbalance
-PKG_VERSION:=1.2.0
-PKG_RELEASE:=4
+PKG_VERSION:=1.6.0
+PKG_RELEASE:=5
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/Irqbalance/irqbalance.git
-PKG_SOURCE_VERSION:=0e0dd4cfe5464de2f81eaef504eab7183f1fb030
-PKG_MIRROR_HASH:=c826e78babfc26f777a5791b2a6ea95b61453ba3e3c5803d4428cc803216bc5c
+PKG_SOURCE_VERSION:=b47eea84cbb93f533b0cba2f1aaf9ca4da8706b9
+PKG_MIRROR_HASH:=ce1cd84cd315492d4260786735eae81e49515ec3eebe652920a7dc57b93c0c2c
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_LICENSE:=GPLv2
 
@@ -23,9 +23,13 @@ PKG_REMOVE_FILES:=autogen.sh
 
 PKG_BUILD_PARALLEL:=1
 
+# -liconv due to glib2, to be revisited later
+include $(INCLUDE_DIR)/nls.mk
+
 include $(INCLUDE_DIR)/package.mk
 
 define Package/irqbalance
+  PKG_BUILD_DEPENDS:=glib2
   SECTION:=utils
   CATEGORY:=Utilities
   TITLE:=IRQ usage balancing for multi-core systems
@@ -42,7 +46,12 @@ CONFIGURE_ARGS+= \
 	--disable-numa \
 	--with-libcap_ng=no \
 	--with-systemd=no \
-	--without-glib2
+	--without-irqbalance-ui \
+	--enable-static=glib2
+
+CONFIGURE_VARS += \
+	GLIB2_LIBS="$(STAGING_DIR)/usr/lib/libglib-2.0.a \
+		$(STAGING_DIR)/usr/lib/libiconv-stub/lib/libiconv.a"
 
 define Package/irqbalance/install
 	$(INSTALL_DIR) $(1)/usr/sbin