core: Makefile: fix a typo in a comment

# -----------------------------------------------------------------

# vendor build.prop

#

# For verifying that the vendor build is what we thing it is

# For verifying that the vendor build is what we think it is

ifdef BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE

INSTALLED_VENDOR_BUILD_PROP_TARGET := $(TARGET_OUT_VENDOR)/build.prop

ALL_DEFAULT_INSTALLED_MODULES += $(INSTALLED_VENDOR_BUILD_PROP_TARGET)