Resolve React-RCTText Xcode warning (#28054)

Summary:
Resolve React-RCTText warning: `'UIKeyboardTypeASCIICapableNumberPad' is only available on iOS 10.0 or newer`

## Changelog

[iOS] [Fixed] - Resolve React-RCTText Xcode warning
Pull Request resolved: https://github.com/facebook/react-native/pull/28054

Test Plan: Build template, React-RCTText should no longer throw a warning.

Differential Revision: D19887063

Pulled By: hramos

fbshipit-source-id: 3437ee993babd7cdaec259af24526e197acb64bb

Libraries/Text/TextInput/RCTBaseTextInputView.m

@@ -585,7 +585,9 @@ RCT_NOT_IMPLEMENTED(- (instancetype)initWithFrame:(CGRect)frame)
 
   // These keyboard types (all are number pads) don't have a "Done" button by default,
   // so we create an `inputAccessoryView` with this button for them.
-  BOOL shouldHaveInputAccesoryView =
+  BOOL shouldHaveInputAccesoryView;
+  if (@available(iOS 10.0, *)) {
+      shouldHaveInputAccesoryView =
       (
        keyboardType == UIKeyboardTypeNumberPad ||
        keyboardType == UIKeyboardTypePhonePad ||
@@ -593,6 +595,15 @@ RCT_NOT_IMPLEMENTED(- (instancetype)initWithFrame:(CGRect)frame)
        keyboardType == UIKeyboardTypeASCIICapableNumberPad
       ) &&
       textInputView.returnKeyType == UIReturnKeyDone;
+  } else {
+      shouldHaveInputAccesoryView =
+      (
+       keyboardType == UIKeyboardTypeNumberPad ||
+       keyboardType == UIKeyboardTypePhonePad ||
+       keyboardType == UIKeyboardTypeDecimalPad
+      ) &&
+      textInputView.returnKeyType == UIReturnKeyDone;
+  }
 
   if (_hasInputAccesoryView == shouldHaveInputAccesoryView) {
     return;