Bump Makefile version to update compiler warning

Makefile

 ##
 ## Makefile for Miosix embedded OS
 ##
-MAKEFILE_VERSION := 1.08
+MAKEFILE_VERSION := 1.09
 GCCMAJOR := $(shell arm-miosix-eabi-gcc --version | \
                     perl -e '$$_=<>;/\(GCC\) (\d+)/;print "$$1"')
 ## Path to kernel directory (edited by init_project_out_of_git_repo.pl)

miosix/Makefile

@@ -2,7 +2,7 @@
 ## Makefile for Miosix embedded OS
 ## This makefile builds the whole kernel
 ##
-MAKEFILE_VERSION := 1.08
+MAKEFILE_VERSION := 1.09
 GCCMAJOR := $(shell arm-miosix-eabi-gcc --version | \
                     perl -e '$$_=<>;/\(GCC\) (\d+)/;print "$$1"')
 ## KPATH and CONFPATH are forwarded by the parent Makefile

miosix/config/Makefile.inc

@@ -587,7 +587,7 @@ endif
 ## a new board or porting Miosix to a new architecture                    ##
 ############################################################################
 
-ifneq ($(MAKEFILE_VERSION),1.08)
+ifneq ($(MAKEFILE_VERSION),1.09)
     $(info You are using an incompatible makefile. Make sure it matches \
       the one distributed with the current version of the kernel)
     $(error Error)