ARM: 8543/1: decompressor: rename suffix_y to compress-y

The "$(suffix_y)" no longer appears in the file names, but it just
specifies the method of the file compression.  The "compress-y" sounds
more suitable.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/boot/compressed/Makefile

@@ -66,11 +66,11 @@ endif
 
 CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
 
-suffix_$(CONFIG_KERNEL_GZIP) = gzip
-suffix_$(CONFIG_KERNEL_LZO)  = lzo
-suffix_$(CONFIG_KERNEL_LZMA) = lzma
-suffix_$(CONFIG_KERNEL_XZ)   = xzkern
-suffix_$(CONFIG_KERNEL_LZ4)  = lz4
+compress-$(CONFIG_KERNEL_GZIP) = gzip
+compress-$(CONFIG_KERNEL_LZO)  = lzo
+compress-$(CONFIG_KERNEL_LZMA) = lzma
+compress-$(CONFIG_KERNEL_XZ)   = xzkern
+compress-$(CONFIG_KERNEL_LZ4)  = lz4
 
 # Borrowed libfdt files for the ATAG compatibility mode
 
@@ -174,7 +174,7 @@ $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
 	@$(check_for_bad_syms)
 
 $(obj)/piggy_data: $(obj)/../Image FORCE
-	$(call if_changed,$(suffix_y))
+	$(call if_changed,$(compress-y))
 
 $(obj)/piggy.o: $(obj)/piggy_data