fix for MOSYNC-3256 HelloMAUI test app fails to update the input box when input something and press ok.

actually it's an Android endianess issue on the MAUI::TextBox
Merge branch 'ThreeThree' of https://github.com/MoSync/MoSync into ThreeThree
Merge pull request #479 from chovus/ThreeThree

MOSYNC-3256: HelloMAUI test app fails to update the input box when input something and press ok.