gunzip: move to lib_generic

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/common/Makefile b/common/Makefile
index 944b1c0..d974823 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -36,7 +36,6 @@
 COBJS-$(CONFIG_CMD_BEDBUG) += cmd_bedbug.o
 COBJS-$(CONFIG_CMD_BMP) += cmd_bmp.o
 COBJS-y += image.o
-COBJS-y += gunzip.o
 COBJS-y += cmd_boot.o
 COBJS-$(CONFIG_CMD_BOOTLDR) += cmd_bootldr.o
 COBJS-y += cmd_bootm.o
diff --git a/lib_generic/Makefile b/lib_generic/Makefile
index bf0e31d..a820f97 100644
--- a/lib_generic/Makefile
+++ b/lib_generic/Makefile
@@ -34,6 +34,7 @@
 COBJS-y += ctype.o
 COBJS-y += display_options.o
 COBJS-y += div64.o
+COBJS-y += gunzip.o
 COBJS-y += lmb.o
 COBJS-y += ldiv.o
 COBJS-$(CONFIG_MD5) += md5.o
diff --git a/common/gunzip.c b/lib_generic/gunzip.c
similarity index 100%
rename from common/gunzip.c
rename to lib_generic/gunzip.c