Use OFFSET_PATTERN from libs.mk

Forestall possible issues with -ggdb3
https://gerrit.chromium.org/gerrit/16160
https://trac.macports.org/ticket/33285

Change-Id: Ied274f70004709800576a803afa91e1b0f6eb02b

build/make/Android.mk

@@ -99,7 +99,7 @@ $$(eval $$(call ev-build-file))
 
 $(1) : $$(_OBJ) $(2)
 	@mkdir -p $$(dir $$@)
-	@grep -w EQU $$< | tr -d '\#' | $(CONFIG_DIR)/$(ASM_CONVERSION) > $$@
+	@grep $(OFFSET_PATTERN) $$< | tr -d '\#' | $(CONFIG_DIR)/$(ASM_CONVERSION) > $$@
 endef
 
 # Use ads2gas script to convert from RVCT format to GAS format.  This passes