update .gitignore

lichee/brandy/u-boot-2014.07/.gitignore

@@ -0,0 +1,32 @@
+cur.log
+*.o
+*.su
+*.o.cmd
+*.cmd
+*.bin
+*.srec
+*.depend
+
+System.map
+arch/arm/include/asm/arch
+arch/arm/lib/asm-offsets.s
+arch/arm/lib/lib.a
+examples/standalone/hello_world
+include/autoconf.mk
+include/autoconf.mk.dep
+include/config.h
+include/config.mk
+include/config/
+include/generated/
+lib/asm-offsets.s
+scripts/basic/fixdep
+tools/common/
+tools/dumpimage
+tools/lib/
+tools/mkenvimage
+tools/mkimage
+tools/mksunxiboot
+tools/proftool
+u-boot
+u-boot.lds
+u-boot.map