iwinfo: update to latest Git HEAD

a514139 build: compile with -ffunction-sections, -fdata-sections and LTO
3c30b17 wl: only invoke nvram executable if it exists
65b8333 Revert "build: compile with -ffunction-sections, -fdata-sections and LTO"

Signed-off-by: Jo-Philipp Wich <[email protected]>

package/network/utils/iwinfo/Makefile

@@ -11,9 +11,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/iwinfo.git
-PKG_SOURCE_DATE:=2018-07-24
-PKG_SOURCE_VERSION:=94b1366de313c4d1c0c1ea8f0b859bc44d0b231a
-PKG_MIRROR_HASH:=6fe4b76b24b9df0ced458d821df1f84818ca1647ae4d3c4439f486b5d35c986e
+PKG_SOURCE_DATE:=2018-07-31
+PKG_SOURCE_VERSION:=65b8333f5b66f8812c1ed21a4d5b28a576e6ba63
+PKG_MIRROR_HASH:=78574c9f3da286ce2d896855e67193e88a5829fff8616ab093987ea3761c33c3
 PKG_MAINTAINER:=Jo-Philipp Wich <[email protected]>
 PKG_LICENSE:=GPL-2.0