Both CPUHexagonState and TOTAL_PER_THREAD_REGS are defined
in "cpu.h" which is luckily indirectly included. However when
refactoring unrelated files we get:

  In file included from target/hexagon/helper.h:18,
                   from include/exec/helper-proto.h.inc:56,
                   from include/exec/helper-proto.h:13,
                   from target/hexagon/op_helper.c:22:
  target/hexagon/internal.h: At top level:
  target/hexagon/internal.h:29:25: error: unknown type name ‘CPUHexagonState’; did you mean ‘CPUPluginState’?
     29 | void hexagon_debug_vreg(CPUHexagonState *env, int regnum);
        |                         ^~~~~~~~~~~~~~~
        |                         CPUPluginState
  target/hexagon/internal.h:30:25: error: unknown type name ‘CPUHexagonState’; did you mean ‘CPUPluginState’?
     30 | void hexagon_debug_qreg(CPUHexagonState *env, int regnum);
        |                         ^~~~~~~~~~~~~~~
        |                         CPUPluginState
  target/hexagon/internal.h:31:20: error: unknown type name ‘CPUHexagonState’; did you mean ‘CPUPluginState’?
     31 | void hexagon_debug(CPUHexagonState *env);
        |                    ^~~~~~~~~~~~~~~
        |                    CPUPluginState
  target/hexagon/internal.h:33:44: error: ‘TOTAL_PER_THREAD_REGS’ undeclared here (not in a function)
     33 | extern const char * const hexagon_regnames[TOTAL_PER_THREAD_REGS];
        |                                            ^~~~~~~~~~~~~~~~~~~~~

Fix that by including the missing header.

We don't need the "qemu/log.h" since commit 0cb73cb5a02 ("target/hexagon:
Remove HEX_DEBUG/HEX_DEBUG_LOG"): remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Matheus Tavares Bernardino <matheus.bernardino@oss.qualcomm.com>
Reviewed-by: Brian Cain <brian.cain@oss.qualcomm.com>
---
 target/hexagon/internal.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/hexagon/internal.h b/target/hexagon/internal.h
index 32e96f00d97..5fc837ae229 100644
--- a/target/hexagon/internal.h
+++ b/target/hexagon/internal.h
@@ -18,7 +18,7 @@
 #ifndef HEXAGON_INTERNAL_H
 #define HEXAGON_INTERNAL_H
 
-#include "qemu/log.h"
+#include "target/hexagon/cpu.h"
 
 int hexagon_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
 int hexagon_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
-- 
2.52.0