Apply upstream fix for FPCR register handling on aarch64, fixes bogus

test failures in our test runs.

emulators/qemu/Makefile

@@ -1,7 +1,7 @@
-# $NetBSD: Makefile,v 1.198 2019/01/22 12:08:14 gson Exp $
+# $NetBSD: Makefile,v 1.199 2019/01/29 16:01:29 martin Exp $
 
 DISTNAME=	qemu-3.1.0
-PKGREVISION=	2
+PKGREVISION=	3
 CATEGORIES=	emulators
 MASTER_SITES=	https://download.qemu.org/
 EXTRACT_SUFX=	.tar.xz

emulators/qemu/distinfo

@@ -1,4 +1,4 @@
-$NetBSD: distinfo,v 1.139 2018/12/12 16:26:58 adam Exp $
+$NetBSD: distinfo,v 1.140 2019/01/29 16:01:29 martin Exp $
 
 SHA1 (qemu-3.1.0.tar.xz) = 3ed63c0c05abc8c8ec075dac2688c229f139a5da
 RMD160 (qemu-3.1.0.tar.xz) = 7650d76b8578ee2c31cef048c7929b30c607b83d
@@ -16,4 +16,5 @@ SHA1 (patch-hw_display_omap__dss.c) = 6b13242f28e32346bc70548c216c578d98fd3420
 SHA1 (patch-hw_net_etraxfs__eth.c) = e5dd1661d60dbcd27b332403e0843500ba9544bc
 SHA1 (patch-hw_net_xilinx__axienet.c) = ebcd2676d64ce6f31e4a8c976d4fdf530ad5e8b7
 SHA1 (patch-hw_usb_dev-mtp.c) = 66543b5559d92f8e2fa9a6eb85e5dfe7c1ad3339
+SHA1 (patch-target_arm_cpu.h) = 74b8b52c0d6fd34b5755ef60a459d6d07630dc3b
 SHA1 (patch-tests_Makefile.include) = 42345d697cb2e324dccf1d68bd8d61e8001c6162

emulators/qemu/patches/patch-target_arm_cpu.h

@@ -0,0 +1,16 @@
+$NetBSD: patch-target_arm_cpu.h,v 1.1 2019/01/29 16:01:29 martin Exp $
+
+Patch from upstream maintain (Peter Maydell) to fix NetBSD ATF tests
+non-trapping FP exception detection.
+
+--- target/arm/cpu.h.orig	2018-12-11 18:44:34.000000000 +0100
++++ target/arm/cpu.h	2019-01-29 15:44:39.081529725 +0100
+@@ -1297,7 +1297,7 @@ void vfp_set_fpscr(CPUARMState *env, uin
+  * we store the underlying state in fpscr and just mask on read/write.
+  */
+ #define FPSR_MASK 0xf800009f
+-#define FPCR_MASK 0x07ff9f00
++#define FPCR_MASK 0x07ff0000
+ 
+ #define FPCR_FZ16   (1 << 19)   /* ARMv8.2+, FP16 flush-to-zero */
+ #define FPCR_FZ     (1 << 24)   /* Flush-to-zero enable bit */