Bluetooth: shell: Use UUID encode macro for 128-bit UUIDs

Use UUID encode macro fro 128-bit UUIDs for readability. This makes
it easier to see which service you are working with as the
bt_uuid_to_str prints the 128-bit UUIDs in this format.

Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>

subsys/bluetooth/shell/gatt.c

diff --git a/subsys/bluetooth/shell/gatt.c b/subsys/bluetooth/shell/gatt.c
index e1c398e..46af078 100644
--- a/subsys/bluetooth/shell/gatt.c
+++ b/subsys/bluetooth/shell/gatt.c
@@ -726,28 +726,26 @@
 
 #if defined(CONFIG_BT_GATT_DYNAMIC_DB)
 /* Custom Service Variables */
+
 static struct bt_uuid_128 vnd_uuid = BT_UUID_INIT_128(
-	0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
-	0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
+	BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcdef0));
+
 static struct bt_uuid_128 vnd_auth_uuid = BT_UUID_INIT_128(
-	0xf2, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
-	0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
+	BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcdef2));
+
 static const struct bt_uuid_128 vnd_long_uuid1 = BT_UUID_INIT_128(
-	0xf3, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
-	0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
+	BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcdef3));
+
 static const struct bt_uuid_128 vnd_long_uuid2 = BT_UUID_INIT_128(
-	0xde, 0xad, 0xfa, 0xce, 0x78, 0x56, 0x34, 0x12,
-	0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
+	BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x12340, 0x5678cefaadde));
 
 static uint8_t vnd_value[] = { 'V', 'e', 'n', 'd', 'o', 'r' };
 
 static struct bt_uuid_128 vnd1_uuid = BT_UUID_INIT_128(
-	0xf4, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
-	0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
+	BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x12340, 0x56789abcdef4));
 
 static const struct bt_uuid_128 vnd1_echo_uuid = BT_UUID_INIT_128(
-	0xf5, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
-	0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
+	BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x12340, 0x56789abcdef5));
 
 static uint8_t echo_enabled;
 
@@ -923,12 +921,9 @@
 }
 
 static struct bt_uuid_128 met_svc_uuid = BT_UUID_INIT_128(
-	0x01, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
-	0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
-
+	BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcde01));
 static const struct bt_uuid_128 met_char_uuid = BT_UUID_INIT_128(
-	0x02, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12,
-	0x78, 0x56, 0x34, 0x12, 0x78, 0x56, 0x34, 0x12);
+	BT_UUID_128_ENCODE(0x12345678, 0x1234, 0x5678, 0x1234, 0x56789abcde02));
 
 static uint8_t met_char_value[CHAR_SIZE_MAX] = {
 	'M', 'e', 't', 'r', 'i', 'c', 's' };