make the ptext_prompt func can define which keyboard to enter (#2608)

* _

* format

* use define

firmware/application/apps/ui_rds.cpp

@@ -65,6 +65,7 @@ RDSPSNView::RDSPSNView(
             nav,
             PSN,
             8,
+            ENTER_KEYBOARD_MODE_ALPHA,
             [this](std::string& s) {
                 text_psn.set(s);
             });
@@ -86,6 +87,7 @@ RDSRadioTextView::RDSRadioTextView(
             nav,
             radiotext,
             28,
+            ENTER_KEYBOARD_MODE_ALPHA,
             [this](std::string& s) {
                 text_radiotext.set(s);
             });