mesa: Update mesa-dri git recipe and add recipe for 7.5

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

meta/packages/mesa/mesa-dri/cross2.patch

@@ -0,0 +1,44 @@
+Index: git/configure.ac
+===================================================================
+--- git.orig/configure.ac	2009-08-14 16:16:23.000000000 +0100
++++ git/configure.ac	2009-08-14 16:17:27.000000000 +0100
+@@ -268,15 +268,6 @@
+ GLAPI_ASM_SOURCES=""
+ AC_MSG_CHECKING([whether to enable assembly])
+ test "x$enable_asm" = xno && AC_MSG_RESULT([no])
+-# disable if cross compiling on x86/x86_64 since we must run gen_matypes
+-if test "x$enable_asm" = xyes && test "x$cross_compiling" = xyes; then
+-    case "$host_cpu" in
+-    i?86 | x86_64)
+-        enable_asm=no
+-        AC_MSG_RESULT([no, cross compiling])
+-        ;;
+-    esac
+-fi
+ # check for supported arches
+ if test "x$enable_asm" = xyes; then
+     case "$host_cpu" in
+Index: git/src/mesa/x86/Makefile
+===================================================================
+--- git.orig/src/mesa/x86/Makefile	2009-08-14 16:18:23.000000000 +0100
++++ git/src/mesa/x86/Makefile	2009-08-14 16:19:10.000000000 +0100
+@@ -14,19 +14,6 @@
+ 	-I../tnl
+ 
+ 
+-default: gen_matypes matypes.h
+-
+-clean:
+-	-rm -f matypes.h gen_matypes
+-
+-
+-gen_matypes: gen_matypes.c
+-	$(HOST_CC) $(INCLUDE_DIRS) $(HOST_CFLAGS) gen_matypes.c -o gen_matypes
+-
+-# need some special rules here, unfortunately
+-matypes.h: ../main/mtypes.h ../tnl/t_context.h gen_matypes
+-	./gen_matypes > matypes.h
+-
+ common_x86_asm.o: matypes.h
+ 3dnow_normal.o: matypes.h
+ 3dnow_xform1.o: matypes.h