Settings search for Vo5G

Also adding keywords support to MobileNetworkSettingsSearchItem.

Fix: 262684662
Flag: EXEMPT bug fix
Test: manual - search vo5g
Change-Id: Ic73b76a2a7b2ef238b167fe3673835298d8939fd

src/com/android/settings/spa/search/SpaSearchRepository.kt

@@ -93,10 +93,12 @@ class SpaSearchRepository(
             itemTitle: String,
             indexableClass: Class<*>,
             pageTitle: String,
+            keywords: String? = null,
         ) =
             SearchIndexableRaw(context).apply {
                 key = spaSearchLandingKey.toByteString().toStringUtf8()
                 title = itemTitle
+                this.keywords = keywords
                 intentAction = SEARCH_LANDING_ACTION
                 intentTargetClass = SpaSearchLandingActivity::class.qualifiedName
                 packageName = context.packageName