Rename UK tones to GB tones

Previous CL which introduced UK tones was incorrect since "uk" is not a
valid ISO country code. This change checks for the "gb" country code
instead.

Change-Id: I1f99a7ec5dd24a112b2b1b486fe613f965fba7ff
Fix: 31003209
diff --git a/include/media/ToneGenerator.h b/include/media/ToneGenerator.h
index a419e17..9fd5f61 100644
--- a/include/media/ToneGenerator.h
+++ b/include/media/ToneGenerator.h
@@ -193,8 +193,8 @@
         TONE_JAPAN_DIAL,            // Dial tone: 400Hz, continuous
         TONE_JAPAN_BUSY,            // Busy tone: 400Hz, 500ms ON, 500ms OFF...
         TONE_JAPAN_RADIO_ACK,       // Radio path acknowlegment: 400Hz, 1s ON, 2s OFF...
-        // UK Supervisory tones
-        TONE_UK_RINGTONE,           // Ring Tone: A 400Hz + 450Hz tone repeated in a 0.4s on, 0.2s off, 0.4s on, 2.0s off pattern.
+        // GB Supervisory tones
+        TONE_GB_RINGTONE,           // Ring Tone: A 400Hz + 450Hz tone repeated in a 0.4s on, 0.2s off, 0.4s on, 2.0s off pattern.
         // AUSTRALIA Supervisory tones
         TONE_AUSTRALIA_RINGTONE,    // Ring tone: A 400Hz + 450Hz tone repeated in a 0.4s on, 0.2s off, 0.4s on, 2.0s off pattern.
         TONE_AUSTRALIA_BUSY,        // Busy tone: 425 Hz repeated in a 0.375s on, 0.375s off pattern.
@@ -206,7 +206,7 @@
     enum region {
         ANSI,
         JAPAN,
-        UK,
+        GB,
         AUSTRALIA,
         CEPT,
         NUM_REGIONS
diff --git a/media/libmedia/ToneGenerator.cpp b/media/libmedia/ToneGenerator.cpp
index 9a087ff..7a72237 100644
--- a/media/libmedia/ToneGenerator.cpp
+++ b/media/libmedia/ToneGenerator.cpp
@@ -746,7 +746,7 @@
                         { .duration = 2000, .waveFreq = { 0 }, 0, 0},
                         { .duration = 0, .waveFreq = { 0 }, 0, 0}},
           .repeatCnt = ToneGenerator::TONEGEN_INF,
-          .repeatSegment = 0 },                              // TONE_UK_RINGTONE
+          .repeatSegment = 0 },                              // TONE_GB_RINGTONE
         { .segments = { { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
                         { .duration = 200, .waveFreq = { 0 }, 0, 0 },
                         { .duration = 400, .waveFreq = { 400, 450, 0 }, 0, 0 },
@@ -796,7 +796,7 @@
             TONE_SUP_CALL_WAITING,       // TONE_SUP_CALL_WAITING
             TONE_SUP_RINGTONE            // TONE_SUP_RINGTONE
         },
-        {   // UK
+        {   // GB
             TONE_SUP_DIAL,               // TONE_SUP_DIAL
             TONE_SUP_BUSY,               // TONE_SUP_BUSY
             TONE_SUP_CONGESTION,         // TONE_SUP_CONGESTION
@@ -804,7 +804,7 @@
             TONE_SUP_RADIO_NOTAVAIL,     // TONE_SUP_RADIO_NOTAVAIL
             TONE_SUP_ERROR,              // TONE_SUP_ERROR
             TONE_SUP_CALL_WAITING,       // TONE_SUP_CALL_WAITING
-            TONE_UK_RINGTONE             // TONE_SUP_RINGTONE
+            TONE_GB_RINGTONE             // TONE_SUP_RINGTONE
         },
         {   // AUSTRALIA
             TONE_ANSI_DIAL,             // TONE_SUP_DIAL
@@ -869,8 +869,8 @@
         mRegion = ANSI;
     } else if (strstr(value, "jp") != NULL) {
         mRegion = JAPAN;
-    } else if (strstr(value, "uk") != NULL) {
-        mRegion = UK;
+    } else if (strstr(value, "gb") != NULL) {
+        mRegion = GB;
     } else if (strstr(value, "au") != NULL) {
         mRegion = AUSTRALIA;
     } else {