[PATCH] x86emul: increase FPU save area in test harness/fuzzer

[Jan Beulich <jbeulich@xxxxxxxx>]

Running them on a system (or emulator) with AMX support requires this
to be quite a bit larger than 8k, to avoid triggering the assert() in
emul_test_init(). Bump all the way up to 16k right away.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
---
Intel's Software Development Emulator properly reports XSAVE-related AMX
CPUID data for Sapphire Rapids emulation as of 8.59.0.

--- a/tools/tests/x86_emulator/x86-emulate.c
+++ b/tools/tests/x86_emulator/x86-emulate.c
@@ -33,7 +33,7 @@
 uint32_t mxcsr_mask = 0x0000ffbf;
 struct cpuid_policy cp;
 
-static char fpu_save_area[4096] __attribute__((__aligned__((64))));
+static char fpu_save_area[0x4000] __attribute__((__aligned__((64))));
 static bool use_xsave;
 
 /*