Fix menu warnings

change offending bool return to int

warning: cast between incompatible function types from
'_Bool (*)(void)' to 'int (*)(void)' [-Wcast-function-type]

forgot to remove -- typedef int (*menu_function)(void);

Change-Id: Ie4c8d3ddb0fb7843c4ec584203350d658d6bee3e
23 files changed