tcg: Search includes from the project root source directory

We currently search both the root and the tcg/ directories for tcg
files:

  $ git grep '#include "tcg/' | wc -l
  28

  $ git grep '#include "tcg[^/]' | wc -l
  94

To simplify the preprocessor search path, unify by expliciting the
tcg/ directory.

Patch created mechanically by running:

  $ for x in \
      tcg.h tcg-mo.h tcg-op.h tcg-opc.h \
      tcg-op-gvec.h tcg-gvec-desc.h; do \
    sed -i "s,#include \"$x\",#include \"tcg/$x\"," \
      $(git grep -l "#include \"$x\""); \
    done

Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts)
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200101112303.20724-2-philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
diff --git a/target/cris/translate.c b/target/cris/translate.c
index cb57516..aaa46b5 100644
--- a/target/cris/translate.c
+++ b/target/cris/translate.c
@@ -27,7 +27,7 @@
 #include "cpu.h"
 #include "disas/disas.h"
 #include "exec/exec-all.h"
-#include "tcg-op.h"
+#include "tcg/tcg-op.h"
 #include "exec/helper-proto.h"
 #include "mmu.h"
 #include "exec/cpu_ldst.h"