ANDROID: drivers/misc: disable LTO for rodata.o

LKDTM was refactored in 4.17 and lkdtm_rodata.o was moved to
lkdtm/rodata.o. Fix CFLAGS to apply to the correct object file,
so LKDTM can be built with LTO.

Bug: 133186739
Change-Id: I906db4aecabf42dec905a8b03933689732ab5b52
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

drivers/misc/lkdtm/Makefile

@@ -12,7 +12,7 @@ lkdtm-$(CONFIG_LKDTM)		+= stackleak.o
 
 KASAN_SANITIZE_stackleak.o	:= n
 KCOV_INSTRUMENT_rodata.o	:= n
-CFLAGS_lkdtm_rodata.o		+= $(DISABLE_LTO)
+CFLAGS_rodata.o			+= $(DISABLE_LTO)
 
 OBJCOPYFLAGS :=
 OBJCOPYFLAGS_rodata_objcopy.o	:= \