Revert "Revert "Build GSIs (aosp_$arch products) in sparse format""

This reverts commit 132748cb80db768455e9118970520db180e905a5.

Reason for revert: The e2fsck issue, b/112062612, that caused the
revert of the original CL has been fixed in aosp/725259.

Change-Id: I5c919aedcc5b1c4823f565ea2bbe0e6ea81bc3b0
diff --git a/core/Makefile b/core/Makefile
index 3968ac3..0d86992 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -3403,35 +3403,35 @@
 INSTALLED_QEMU_SYSTEMIMAGE := $(PRODUCT_OUT)/system-qemu.img
 MK_QEMU_IMAGE_SH := device/generic/goldfish/tools/mk_qemu_image.sh
 SGDISK_HOST := $(HOST_OUT_EXECUTABLES)/sgdisk
-$(INSTALLED_QEMU_SYSTEMIMAGE): $(INSTALLED_SYSTEMIMAGE) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST)
+$(INSTALLED_QEMU_SYSTEMIMAGE): $(INSTALLED_SYSTEMIMAGE) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST) $(SIMG2IMG)
 	@echo Create system-qemu.img
-	(export SGDISK=$(SGDISK_HOST); $(MK_QEMU_IMAGE_SH) ${PRODUCT_OUT}/system.img)
+	(export SGDISK=$(SGDISK_HOST) SIMG2IMG=$(SIMG2IMG); $(MK_QEMU_IMAGE_SH) ${PRODUCT_OUT}/system.img)
 
 systemimage: $(INSTALLED_QEMU_SYSTEMIMAGE)
 droidcore: $(INSTALLED_QEMU_SYSTEMIMAGE)
 ifeq ($(BOARD_USES_VENDORIMAGE),true)
 INSTALLED_QEMU_VENDORIMAGE := $(PRODUCT_OUT)/vendor-qemu.img
-$(INSTALLED_QEMU_VENDORIMAGE): $(INSTALLED_VENDORIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST)
+$(INSTALLED_QEMU_VENDORIMAGE): $(INSTALLED_VENDORIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST) $(SIMG2IMG)
 	@echo Create vendor-qemu.img
-	(export SGDISK=$(SGDISK_HOST); $(MK_QEMU_IMAGE_SH) ${PRODUCT_OUT}/vendor.img)
+	(export SGDISK=$(SGDISK_HOST) SIMG2IMG=$(SIMG2IMG); $(MK_QEMU_IMAGE_SH) ${PRODUCT_OUT}/vendor.img)
 
 vendorimage: $(INSTALLED_QEMU_VENDORIMAGE)
 droidcore: $(INSTALLED_QEMU_VENDORIMAGE)
 endif
 ifeq ($(BOARD_USES_PRODUCTIMAGE),true)
 INSTALLED_QEMU_PRODUCTIMAGE := $(PRODUCT_OUT)/product-qemu.img
-$(INSTALLED_QEMU_PRODUCTIMAGE): $(INSTALLED_PRODUCTIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST)
+$(INSTALLED_QEMU_PRODUCTIMAGE): $(INSTALLED_PRODUCTIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST) $(SIMG2IMG)
 	@echo Create product-qemu.img
-	(export SGDISK=$(SGDISK_HOST); $(MK_QEMU_IMAGE_SH) ${PRODUCT_OUT}/product.img)
+	(export SGDISK=$(SGDISK_HOST) SIMG2IMG=$(SIMG2IMG); $(MK_QEMU_IMAGE_SH) ${PRODUCT_OUT}/product.img)
 
 productimage: $(INSTALLED_QEMU_PRODUCTIMAGE)
 droidcore: $(INSTALLED_QEMU_PRODUCTIMAGE)
 endif
 ifeq ($(BOARD_USES_PRODUCT_SERVICESIMAGE),true)
 INSTALLED_QEMU_PRODUCT_SERVICESIMAGE := $(PRODUCT_OUT)/product-services-qemu.img
-$(INSTALLED_QEMU_PRODUCT_SERVICESIMAGE): $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST)
+$(INSTALLED_QEMU_PRODUCT_SERVICESIMAGE): $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST) $(SIMG2IMG)
 	@echo Create product-services-qemu.img
-	(export SGDISK=$(SGDISK_HOST); $(MK_QEMU_IMAGE_SH) ${PRODUCT_OUT}/product-services.img)
+	(export SGDISK=$(SGDISK_HOST) SIMG2IMG=$(SIMG2IMG); $(MK_QEMU_IMAGE_SH) ${PRODUCT_OUT}/product-services.img)
 
 productservicesimage: $(INSTALLED_QEMU_PRODUCT_SERVICESIMAGE)
 droidcore: $(INSTALLED_QEMU_PRODUCT_SERVICESIMAGE)