[PATCH] data: AT&T 'data device' public APN.

Per AT&T documentation at
<https://www.att.com/support/article/wireless/KM1062162/>, AT&T
currently has three "public" APNs:

    1. 'ENHANCEDPHONE'
       - For 5G smart phone devices.

    2. 'NXTGENPHONE'
       - For 4G / LTE smart phone devices.

    3. '[Bb]roadband'
       - For "data devices" such as Wi-Fi hotspots or IoT/M2M devices.

The first two are already in the provisioning database; this adds the
third under the tag `kore-public` since the AT&T mobile virtual
network operator (MVNO) KORE Wireless recommends this AT&T public APN
for users of its issued "AT&T Business" SIMs and since there is
already a generic 'm2m'-tagged entry with the same types.
---
 data/provision.json | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/data/provision.json b/data/provision.json
index 50319cf33a51..0cb6b8c3dffc 100644
--- a/data/provision.json
+++ b/data/provision.json
@@ -14183,6 +14183,15 @@
         "mmsproxy": "proxy.mobile.att.net:80",
         "tags": "5g"
       },
+      {
+        "name": "AT&T MVNO IoT/M2M (Public)",
+        "apn": "broadband",
+        "type": [
+          "internet",
+          "ia"
+        ],
+        "tags": "kore-public"
+      },
       {
         "name": "AT&T M2M",
         "apn": "m2m005246.attz",
-- 
2.45.0