SQL: Fix 32 bit arm builds (#113270)

* add arm specific frame_db_conf

* use proper field type and fix error

* add extra mising func

pkg/expr/sql/frame_db_conf_arm.go

@@ -0,0 +1,19 @@
+//go:build arm
+
+package sql
+
+import (
+	"errors"
+
+	mysql "github.com/dolthub/go-mysql-server/sql"
+	"github.com/grafana/grafana-plugin-sdk-go/data"
+)
+
+// TODO: Implement for 32-bit arm
+func MySQLColToFieldType(col *mysql.Column) (data.FieldType, error) {
+	return data.FieldTypeUnknown, errors.New("arm not implemented")
+}
+
+func SchemaFromFrame(frame *data.Frame) mysql.Schema {
+	return mysql.Schema{}
+}