target/mips: Move TCG trace events to tcg/ sub directory

Commit a2b0a27d33 ("target/mips: Move TCG source files under
tcg/ sub directory") forgot to move the trace-event file.
As it only contains TCG events, move it for consistency.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-4-f4bug@amsat.org>

meson.build

@@ -1882,7 +1882,7 @@ if have_system or have_user
     'target/hppa',
     'target/i386',
     'target/i386/kvm',
-    'target/mips',
+    'target/mips/tcg',
     'target/ppc',
     'target/riscv',
     'target/s390x',

target/mips/tcg/trace.h

@@ -0,0 +1 @@
+#include "trace/trace-target_mips_tcg.h"

target/mips/tcg/translate.c

@@ -31,7 +31,7 @@
 #include "exec/helper-gen.h"
 #include "semihosting/semihost.h"
 
-#include "target/mips/trace.h"
+#include "trace.h"
 #include "trace-tcg.h"
 #include "exec/translator.h"
 #include "exec/log.h"

target/mips/trace.h

@@ -1 +0,0 @@
-#include "trace/trace-target_mips.h"