NON-AWESOMESAUCE: Manually assign nominal -Os flags for HH/FLO/DEB

The -Os flags must be assigned manually in case -Os and -Werror is present otherwise the build
will throw and error since some options are unsupported with -Os. This is specific to the local
clusterfuck makefiles in chromium_org and sfntly using a variable MY_CFLAGS_Release :\

PS2: whitespace

Change-Id: I006f932d99d9617098d81689acd436721829f980