contrib: update iconv to 1.17

Change-Id: I86f091d583830b91175df393e5701b73dc69d007

contrib/src/iconv/SHA512SUMS

-b96774fefc4fa1d07948fcc667027701373c34ebf9c4101000428e048addd85a5bb5e05e59f80eb783a3054a3a8a3c0da909450053275bbbf3ffde511eb3f387  libiconv-1.14.tar.gz
+18a09de2d026da4f2d8b858517b0f26d853b21179cf4fa9a41070b2d140030ad9525637dc4f34fc7f27abca8acdc84c6751dfb1d426e78bf92af4040603ced86  libiconv-1.17.tar.gz

contrib/src/iconv/rules.mak

 # libiconv
-LIBICONV_VERSION=1.14
+LIBICONV_VERSION=1.17
 LIBICONV_URL=$(GNU)/libiconv/libiconv-$(LIBICONV_VERSION).tar.gz
 
 PKGS += iconv
@@ -18,20 +18,6 @@ $(TARBALLS)/libiconv-$(LIBICONV_VERSION).tar.gz:
 
 iconv: libiconv-$(LIBICONV_VERSION).tar.gz .sum-iconv
 	$(UNPACK)
-	$(APPLY) $(SRC)/iconv/win32.patch
-	$(APPLY) $(SRC)/iconv/bins.patch
-ifdef HAVE_WIN64
-	$(APPLY) $(SRC)/iconv/libiconv-win64.patch
-endif
-ifdef HAVE_ANDROID
-	$(APPLY) $(SRC)/iconv/libiconv-android-ios.patch
-endif
-ifdef HAVE_IOS
-	$(APPLY) $(SRC)/iconv/libiconv-android-ios.patch
-endif
-ifdef HAVE_WINRT
-	$(APPLY) $(SRC)/iconv/libiconv-winrt.patch
-endif
 	$(UPDATE_AUTOCONFIG) && cd $(UNPACK_DIR) && mv config.guess config.sub build-aux
 	$(UPDATE_AUTOCONFIG) && cd $(UNPACK_DIR) && mv config.guess config.sub libcharset/build-aux
 	$(MOVE)