tcpdump: update to 4.9.3

Fixed CVEs:
	CVE-2017-16808
	CVE-2018-10103
	CVE-2018-10105
	CVE-2018-14461
	CVE-2018-14462
	CVE-2018-14463
	CVE-2018-14464
	CVE-2018-14465
	CVE-2018-14466
	CVE-2018-14467
	CVE-2018-14468
	CVE-2018-14469
	CVE-2018-14470
	CVE-2018-14879
	CVE-2018-14880
	CVE-2018-14881
	CVE-2018-14882
	CVE-2018-16227
	CVE-2018-16228
	CVE-2018-16229
	CVE-2018-16230
	CVE-2018-16300
	CVE-2018-16301
	CVE-2018-16451
	CVE-2018-16452
	CVE-2019-15166
	CVE-2019-15167

Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn>
(cherry picked from commit 394273c066)

package/network/utils/tcpdump/Makefile

@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=tcpdump
-PKG_VERSION:=4.9.2
+PKG_VERSION:=4.9.3
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://www.us.tcpdump.org/release/ \
 	http://www.tcpdump.org/release/
-PKG_HASH:=798b3536a29832ce0cbb07fafb1ce5097c95e308a6f592d14052e1ef1505fe79
+PKG_HASH:=2cd47cb3d460b6ff75f4a9940f594317ad456cfbf2bd2c8e5151e16559db6410
 
 PKG_BUILD_PARALLEL:=1
 

package/network/utils/tcpdump/patches/001-remove_pcap_debug.patch

@@ -1,6 +1,6 @@
 --- a/configure
 +++ b/configure
-@@ -6259,97 +6259,6 @@ $as_echo "no" >&6; }
+@@ -6183,97 +6183,6 @@ $as_echo "no" >&6; }
      fi
  fi
  

package/network/utils/tcpdump/patches/002-remove_static_libpcap_check.patch

@@ -1,6 +1,6 @@
 --- a/configure
 +++ b/configure
-@@ -5471,37 +5471,6 @@ $as_echo "Using $pfopen" >&6; }
+@@ -5395,37 +5395,6 @@ $as_echo "Using $pfopen" >&6; }
  		    LIBS="$LIBS $pfopen"
  	    fi
      fi
@@ -38,7 +38,7 @@
  
  	    #
  	    # Look for pcap-config.
-@@ -5657,51 +5626,6 @@ if test "x$ac_cv_lib_pcap_main" = xyes;
+@@ -5581,51 +5550,6 @@ if test "x$ac_cv_lib_pcap_main" = xyes;
    libpcap="-lpcap"
  fi
  

package/network/utils/tcpdump/patches/100-tcpdump_mini.patch

@@ -111,7 +111,7 @@
  const char *
  dnaddr_string(netdissect_options *ndo, u_short dnaddr)
  {
-@@ -1233,6 +1236,7 @@ dnaddr_string(netdissect_options *ndo, u
+@@ -1230,6 +1233,7 @@ dnaddr_string(netdissect_options *ndo, u
  
  	return(tp->name);
  }
@@ -605,7 +605,7 @@
  /*
 --- a/print-sll.c
 +++ b/print-sll.c
-@@ -238,12 +238,14 @@ recurse:
+@@ -249,12 +249,14 @@ recurse:
  		 */
  		switch (ether_type) {
  
@@ -683,7 +683,7 @@
          else if (IS_SRC_OR_DST_PORT(FTP_PORT)) {
                  ND_PRINT((ndo, ": "));
                  ftp_print(ndo, bp, length);
-@@ -719,6 +730,7 @@ tcp_print(netdissect_options *ndo,
+@@ -725,6 +736,7 @@ tcp_print(netdissect_options *ndo,
                   * XXX packet could be unaligned, it can go strange
                   */
                  ns_print(ndo, bp + 2, length - 2, 0);
@@ -691,7 +691,7 @@
          } else if (IS_SRC_OR_DST_PORT(MSDP_PORT)) {
                  msdp_print(ndo, bp, length);
          } else if (IS_SRC_OR_DST_PORT(RPKI_RTR_PORT)) {
-@@ -726,6 +738,7 @@ tcp_print(netdissect_options *ndo,
+@@ -732,6 +744,7 @@ tcp_print(netdissect_options *ndo,
          }
          else if (length > 0 && (IS_SRC_OR_DST_PORT(LDP_PORT))) {
                  ldp_print(ndo, bp, length);