Rearrange Makefile
Fix build warning and remove trailing space

fbtool.c:105:25: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 3 has type ‘long unsigned int’ [-Wformat=]
fbtool.c:105:25: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 4 has type ‘size_t’ [-Wformat=]
fbtool.c:135:25: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘size_t’ [-Wformat=]