Backport - Improve device detection: Lenovo

(cherry picked from commit b4bc86ac6d887d64b959bd73a16c7141d57f602b)

src/ua-parser.js

@@ -50,6 +50,7 @@
         GOOGLE  = 'Google',
         HONOR   = 'Honor',
         HUAWEI  = 'Huawei',
+        LENOVO  = 'Lenovo',
         LG      = 'LG',
         MICROSOFT = 'Microsoft',
         MOTOROLA  = 'Motorola',
@@ -488,9 +489,9 @@
             ], [MODEL, [VENDOR, LG], [TYPE, MOBILE]], [
 
             // Lenovo
-            /(ideatab[-\w ]+)/i,
-            /lenovo ?(s[56]000[-\w]+|tab(?:[\w ]+)|yt[-\d\w]{6}|tb[-\d\w]{6})/i
-            ], [MODEL, [VENDOR, 'Lenovo'], [TYPE, TABLET]], [
+            /(ideatab[-\w ]+|602lv|d-42a|a101lv|a2109a|a3500-hv|s[56]000|pb-6505[my]|tb-?x?\d{3,4}(?:f[cu]|xu|[av])|yt\d?-[jx]?\d+[lfmx])( bui|;|\)|\/)/i,
+            /lenovo ?(b[68]0[08]0-?[hf]?|tab(?:[\w- ]+?)|tb[\w-]{6,7})( bui|;|\)|\/)/i
+            ], [MODEL, [VENDOR, LENOVO], [TYPE, TABLET]], [
 
             // Nokia
             /(nokia) (t[12][01])/i
@@ -606,7 +607,7 @@
             /(hp) ([\w ]+\w)/i,                                                 // HP iPAQ
             /(asus)-?(\w+)/i,                                                   // Asus
             /(microsoft); (lumia[\w ]+)/i,                                      // Microsoft Lumia
-            /(lenovo)[-_ ]?([-\w]+)/i,                                          // Lenovo
+            /(lenovo)[-_ ]?([-\w ]+?)(?: bui|\)|\/)/i,                          // Lenovo
             /(jolla)/i,                                                         // Jolla
             /(oppo) ?([\w ]+) bui/i                                             // OPPO
             ], [VENDOR, MODEL, [TYPE, MOBILE]], [