emulators/qemu: Re-enable build for i386

During the upgrade to 7.0 the build of qemu for i386 got disabled, due
to "unknown-type name 'vm_page_t'" errors. This has been fixed.

PR:		268647
Reported by:	dim

emulators/qemu/Makefile

@@ -11,7 +11,7 @@ WWW=		https://www.qemu.org/
 LICENSE=	GPLv2
 
 .if ${FLAVOR:U} != tools
-ONLY_FOR_ARCHS=	aarch64 amd64 powerpc64 powerpc64le
+ONLY_FOR_ARCHS=	aarch64 amd64 i386 powerpc64 powerpc64le
 # We need to check if it build with other ARCHS
 # For i386 we have unknown type name 'vm_page_t'
 .endif

emulators/qemu/files/patch-bsd-user_host_i386_host-signal.h

@@ -1,10 +1,10 @@
 --- bsd-user/host/i386/host-signal.h.orig	2022-12-14 16:28:45 UTC
 +++ bsd-user/host/i386/host-signal.h
-@@ -13,6 +13,7 @@
+@@ -12,6 +12,7 @@
+ #include <sys/param.h>
  #include <sys/ucontext.h>
  #include <machine/trap.h>
- #include <vm/pmap.h>
 +#include <vm/vm.h>
+ #include <vm/pmap.h>
  #include <machine/pmap.h>
 
- static inline uintptr_t host_signal_pc(ucontext_t *uc)

emulators/qemu/files/patch-meson.build

@@ -1,6 +1,6 @@
---- meson.build.orig	2022-04-19 19:10:27 UTC
+--- meson.build.orig	2022-12-14 16:28:45 UTC
 +++ meson.build
-@@ -2505,14 +2505,10 @@ if have_system
+@@ -2719,14 +2719,10 @@ if have_system
    fdt_opt = get_option('fdt')
    if fdt_opt in ['enabled', 'auto', 'system']
      have_internal = fs.exists(meson.current_source_dir() / 'dtc/libfdt/Makefile.libfdt')

emulators/qemu/files/patch-util_meson.build

@@ -1,6 +1,6 @@
---- util/meson.build.orig	2022-04-23 11:59:28 UTC
+--- util/meson.build.orig	2022-12-14 16:28:45 UTC
 +++ util/meson.build
-@@ -87,10 +87,6 @@ if have_block
+@@ -97,10 +97,6 @@ if have_block
    util_ss.add(files('readline.c'))
    util_ss.add(files('throttle.c'))
    util_ss.add(files('timed-average.c'))