thermal/tools/tmon: Include pthread and time headers in tmon.h

Include sys/time.h and pthread.h in tmon.h, so that types
"pthread_mutex_t" and "struct timeval tv" are known when tmon.h
references them.

Without these headers, compiling tmon against musl-libc will fail with
these errors:

In file included from sysfs.c:31:0:
tmon.h:47:8: error: unknown type name 'pthread_mutex_t'
extern pthread_mutex_t input_lock;
^~~~~~~~~~~~~~~
make[3]: *** [<builtin>: sysfs.o] Error 1
make[3]: *** Waiting for unfinished jobs....
In file included from tui.c:31:0:
tmon.h:54:17: error: field 'tv' has incomplete type
struct timeval tv;
^~
make[3]: *** [<builtin>: tui.o] Error 1
make[2]: *** [Makefile:83: tmon] Error 2

Signed-off-by: Markus Mayer <[e-mail]>
Acked-by: Florian Fainelli <[e-mail]>
Reviewed-by: Sumeet Pawnikar <[e-mail]>
Acked-by: Alejandro González <[e-mail]>
Tested-by: Alejandro González <[e-mail]>
Fixes: 94f69966faf8 ("tools/thermal: Introduce tmon, a tool for thermal subsystem")
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Daniel Lezcano <[e-mail]>

tools/thermal/tmon/tmon.h

···
 #define NR_LINES_TZDATA 1
 #define TMON_LOG_FILE "/var/tmp/tmon.log"
 
+#include <sys/time.h>
+#include <pthread.h>
+
 extern unsigned long ticktime;
 extern double time_elapsed;
 extern unsigned long target_temp_user;