Chrome Makefiles need a bit of clean up

[vapier]

the current Makefiles (Products/ESIF_UF/Chrome86/Release/ and such) have issues (these aren't specific to Chromium OS ... these apply to all the Makefiles):

• CC should not override the env. it should utilize $(origin) like so:

ifneq ($(filter default undefined,$(origin CC)),)
CC := gcc
endif

• CFLAGS should not be ignored or hardcode optimization settings; should rename CC_OPTIONS to CFLAGS while fixing this.

# These are the defaults.
CFLAGS ?= -o9 -m32 -pipe ...
# These are the ones we want to always use.
CFLAGS += -Wno-multichar

• CPPFLAGS should not be ignored; should rename INC to CPPFLAGS while fixing this.

CPPFLAGS += -I...all the inc paths...
CPPFLAGS += -D...all the defines...
...
%.o: %.c $(DEPS)
   $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<

• -fPIC should not be used with applications (maybe you meant -fPIE ?)
• LDFLAGS should not be ignored (and rename LIB to LDLIBS while fixing this)

esif_ufd: $(OBJ)
   $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LDLIBS)

[bgeltz]

Thanks for the feedback! We'll be incorporating this today and it will be pushed to GitHub soon.