qemu: refresh patches to include git headers

Use git format-patch to be able to use git am later, to fix openwrt/openwrt#10272 .
Remove patch to skip tests as not needed anymore.
Then apply refresh.

Signed-off-by: Vladimir Ermakov <vooon341@gmail.com>

utils/qemu/patches/0002-util-mmap-alloc-fix-missing-MAP_SYNC.patch

@@ -0,0 +1,48 @@
+From b2cd62027dbf41c3cd5354ed1a5f73c5e26b1811 Mon Sep 17 00:00:00 2001
+From: Yousong Zhou <yszhou4tech@gmail.com>
+Date: Mon, 30 Mar 2020 12:48:58 +0800
+Subject: [PATCH 2/4] util/mmap-alloc: fix missing MAP_SYNC
+
+Quote musl-libc commit 9b57db3f958 ("add MAP_SYNC and
+MAP_SHARED_VALIDATE from linux v4.15")
+
+ > for synchronous page faults, new in linux commit
+ > 1c9725974074a047f6080eecc62c50a8e840d050 and
+ > b6fb293f2497a9841d94f6b57bd2bb2cd222da43
+ > note that only targets that use asm-generic/mman.h have this new
+ > flag defined, so undef it on other targets (mips*, powerpc*).
+
+Fixes 119906afa5c ("util/mmap-alloc: support MAP_SYNC in
+qemu_ram_mmap()")
+
+Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
+---
+ util/mmap-alloc.c | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+--- a/util/mmap-alloc.c
++++ b/util/mmap-alloc.c
+@@ -12,9 +12,6 @@
+ 
+ #ifdef CONFIG_LINUX
+ #include <linux/mman.h>
+-#else  /* !CONFIG_LINUX */
+-#define MAP_SYNC              0x0
+-#define MAP_SHARED_VALIDATE   0x0
+ #endif /* CONFIG_LINUX */
+ 
+ #include "qemu/osdep.h"
+@@ -57,6 +54,13 @@ QemuFsType qemu_fd_getfs(int fd)
+ #endif
+ }
+ 
++#ifndef MAP_SYNC
++#define MAP_SYNC              0x0
++#endif
++#ifndef MAP_SHARED_VALIDATE
++#define MAP_SHARED_VALIDATE   0x0
++#endif
++
+ size_t qemu_fd_getpagesize(int fd)
+ {
+ #ifdef CONFIG_LINUX