miniupnpd: Update to 2.1.20190408

Refreshed patch.

Added PKG_LICENSE_FILES.

Added --as-needed linker flag for slightly smaller size.

Removed -O2 hack to get it to compile. As part of this, removed a bunch of
CFLAGS that are normally passed which potentially affect compilation with
Os.

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

net/miniupnpd/patches/200-remove-default-cflags.patch

@@ -0,0 +1,27 @@
+--- a/Makefile.linux
++++ b/Makefile.linux
+@@ -23,16 +23,16 @@
+ #
+ #CFLAGS = -O -g -DDEBUG
+ CFLAGS ?= -Os
+-CFLAGS += -fno-strict-aliasing
+-CFLAGS += -fno-common
+-CFLAGS += -fstack-protector -fPIE
+-CFLAGS += -D_FORTIFY_SOURCE=2
+-CPPFLAGS += -D_GNU_SOURCE
+-CFLAGS += -Wall
+-CFLAGS += -Wextra -Wstrict-prototypes -Wdeclaration-after-statement
++#CFLAGS += -fno-strict-aliasing
++#CFLAGS += -fno-common
++#CFLAGS += -fstack-protector -fPIE
++#CFLAGS += -D_FORTIFY_SOURCE=2
++#CPPFLAGS += -D_GNU_SOURCE
++#CFLAGS += -Wall
++#CFLAGS += -Wextra -Wstrict-prototypes -Wdeclaration-after-statement
+ #CFLAGS += -Wno-missing-field-initializers
+ #CFLAGS += -ansi	# iptables headers does use typeof which is a gcc extension
+-LDFLAGS += -Wl,-z,now -Wl,-z,relro -pie
++LDFLAGS ?= -Wl,-z,now -Wl,-z,relro -pie
+ CC ?= gcc
+ RM = rm -f
+ INSTALL = install