cross: Fix host_machine.system in the example iphone cross config.
cross: Fix host_machine.system in the example iphone cross config.

becm/meson,pexip/meson,mesonbuild/meson,thiblahute/meson,jpakkane/meson,jpakkane/meson,QuLogic/meson,jeandet/meson,QuLogic/meson,jpakkane/meson,aaronp24/meson,QuLogic/meson,rhd/meson,mesonbuild/meson,mesonbuild/meson,jpakkane/meson,becm/meson,becm/meson,jeandet/meson,jeandet/meson,thiblahute/meson,fmuellner/meson,QuLogic/meson,rhd/meson,ernestask/meson,aaronp24/meson,aaronp24/meson,aaronp24/meson,mesonbuild/meson,becm/meson,MathieuDuponchelle/meson,MathieuDuponchelle/meson,fmuellner/meson,wberrier/meson,becm/meson,jeandet/meson,jpakkane/meson,wberrier/meson,pexip/meson,thiblahute/meson,QuLogic/meson,jeandet/meson,ernestask/meson,trhd/meson,fmuellner/meson,trhd/meson,rhd/meson,wberrier/meson,becm/meson,rhd/meson,becm/meson,pexip/meson,mesonbuild/meson,jpakkane/meson,wberrier/meson,pexip/meson,ernestask/meson,aaronp24/meson,mesonbuild/meson,QuLogic/meson,MathieuDuponchelle/meson,thiblahute/meson,thiblahute/meson,jpakkane/meson,jpakkane/meson,trhd/meson,trhd/meson,trhd/meson,ernestask/meson,trhd/meson,pexip/meson,trhd/meson,MathieuDuponchelle/meson,rhd/meson,thiblahute/meson,mesonbuild/meson,MathieuDuponchelle/meson,wberrier/meson,pexip/meson,aaronp24/meson,fmuellner/meson,pexip/meson,mesonbuild/meson,QuLogic/meson,MathieuDuponchelle/meson,ernestask/meson,ernestask/meson,pexip/meson,fmuellner/meson,trhd/meson,wberrier/meson,wberrier/meson,thiblahute/meson,aaronp24/meson,fmuellner/meson,jeandet/meson,becm/meson,mesonbuild/meson,rhd/meson,becm/meson,ernestask/meson,QuLogic/meson,aaronp24/meson,pexip/meson,ernestask/meson,MathieuDuponchelle/meson,ernestask/meson,thiblahute/meson,becm/meson,trhd/meson,fmuellner/meson,jpakkane/meson,fmuellner/meson,rhd/meson,mesonbuild/meson,jeandet/meson,QuLogic/meson,fmuellner/meson,pexip/meson,wberrier/meson,jeandet/meson,aaronp24/meson,rhd/meson,MathieuDuponchelle/meson,thiblahute/meson,jeandet/meson,MathieuDuponchelle/meson