curl: bump to 7.57.0 (3 CVEs)

CVE-2017-8816: NTLM buffer overflow via integer overflow
CVE-2017-8817: FTP wildcard out of bounds read
CVE-2017-8818: SSL out of buffer access

For other bugfixes and changes in 7.57.0 see https://curl.haxx.se/changes.html

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

package/network/utils/curl/patches/200-no_docs_tests.patch

@@ -1,6 +1,6 @@
 --- a/Makefile.am
 +++ b/Makefile.am
-@@ -155,7 +155,7 @@ CLEANFILES = $(VC6_LIBDSP) $(VC6_SRCDSP)
+@@ -156,7 +156,7 @@ CLEANFILES = $(VC6_LIBDSP) $(VC6_SRCDSP)
  bin_SCRIPTS = curl-config
  
  SUBDIRS = lib src
@@ -9,7 +9,7 @@
  
  pkgconfigdir = $(libdir)/pkgconfig
  pkgconfig_DATA = libcurl.pc
-@@ -275,8 +275,8 @@ cygwinbin:
+@@ -267,8 +267,8 @@ cygwinbin:
  # We extend the standard install with a custom hook:
  install-data-hook:
  	cd include && $(MAKE) install