libv4l: update to 1.22.1

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/libv4l/Makefile

@@ -6,17 +6,16 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=v4l-utils
-PKG_VERSION:=1.20.0
+PKG_VERSION:=1.22.1
-PKG_RELEASE:=5
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://www.linuxtv.org/downloads/v4l-utils
-PKG_HASH:=956118713f7ccb405c55c7088a6a2490c32d54300dd9a30d8d5008c28d3726f7
+PKG_HASH:=65c6fbe830a44ca105c443b027182c1b2c9053a91d1e72ad849dfab388b94e31
 
 PKG_MAINTAINER:=Ted Hess <thess@kitschensync.net>
 
 PKG_USE_MIPS16:=0
-PKG_FIXUP:=autoreconf
 PKG_INSTALL:=1
 PKG_BUILD_PARALLEL:=1
 
@@ -75,7 +74,6 @@ define Package/v4l-utils/description
 endef
 
 TARGET_CFLAGS += -flto
-TARGET_CXXFLAGS += -std=c++11
 TARGET_LDFLAGS += \
 	$(if $(CONFIG_USE_GLIBC),,-largp) \
 	-Wl,--gc-sections,--as-needed

libs/libv4l/patches/020-add-missing-includes.patch

@@ -1,10 +0,0 @@
---- a/utils/libcecutil/cec-info.cpp
-+++ b/utils/libcecutil/cec-info.cpp
-@@ -5,6 +5,7 @@
-  * Copyright 2017 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
-  */
- 
-+#include <cctype>
- #include <stdio.h>
- #include <string>
- #include <unistd.h>

libs/libv4l/patches/030-getsubopt.patch

@@ -1,28 +0,0 @@
---- a/utils/v4l2-ctl/v4l2-ctl-common.cpp
-+++ b/utils/v4l2-ctl/v4l2-ctl-common.cpp
-@@ -785,15 +785,17 @@ static bool parse_subset(char *optarg)
- 
- static bool parse_next_subopt(char **subs, char **value)
- {
--	static char *const subopts[] = {
--	    NULL
--	};
--	int opt = getsubopt(subs, subopts, value);
-+	char *p = *subs;
-+	*value = *subs;
- 
--	if (opt < 0 || *value)
--		return false;
--	fprintf(stderr, "Missing suboption value\n");
--	return true;
-+	while (*p && *p != ',')
-+		p++;
-+
-+	if (*p)
-+		*p++ = '\0';
-+
-+	*subs = p;
-+	return false;
- }
- 
- void common_cmd(const std::string &media_bus_info, int ch, char *optarg)