fix(platform): only set isPortrait when the width/height is set
fix(platform): only set isPortrait when the width/height is set

alan-agius4/ionic,TillaTheHun0/ionic,alan-agius4/ionic,joshesp/ionic,alan-agius4/ionic,driftyco/ionic,driftyco/ionic,driftyco/ionic,joshesp/ionic,TillaTheHun0/ionic,alan-agius4/ionic,alan-agius4/ionic,driftyco/ionic,TillaTheHun0/ionic,alan-agius4/ionic,joshesp/ionic,TillaTheHun0/ionic,joshesp/ionic,driftyco/ionic