log: new object logging support

So that we can provide the specific object id in every log associated
to a given object.

src/tests/test-at-serial-port.c

@@ -65,7 +65,8 @@ at_serial_echo_removal (void)
 }
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,

src/tests/test-charsets.c

@@ -409,7 +409,8 @@ test_charset_can_covert_to (void)
 }
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,

src/tests/test-error-helpers.c

@@ -53,7 +53,8 @@ TEST_ERROR_HELPER (MESSAGE_ERROR,          message_error,          MessageError)
 /*****************************************************************************/
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,

src/tests/test-modem-helpers-qmi.c

@@ -310,7 +310,8 @@ test_gobi3k_cdma (void)
 /*****************************************************************************/
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,

src/tests/test-modem-helpers.c

@@ -4502,7 +4502,8 @@ test_bcd_to_string (void *f, gpointer d)
 /*****************************************************************************/
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,

src/tests/test-qcdm-serial-port.c

@@ -438,7 +438,8 @@ test_pty_cleanup (TestData *d)
 }
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,

src/tests/test-sms-part-3gpp.c

@@ -841,7 +841,8 @@ test_text_split_two_pdu_ucs2 (void)
 /************************************************************/
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,

src/tests/test-sms-part-cdma.c

@@ -505,7 +505,8 @@ test_create_pdu_text_unicode_encoding (void)
 /************************************************************/
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,

src/tests/test-udev-rules.c

@@ -44,7 +44,8 @@ test_load_cleanup_core (void)
 /************************************************************/
 
 void
-_mm_log (const char *loc,
+_mm_log (gpointer obj,
+         const char *loc,
          const char *func,
          guint32 level,
          const char *fmt,