[MiNT] [PATCH] Correct Makefile's variable name for ext2fs.xfs module

[David Gálvez <dgalvez75@gmail.com>]

Please commit.
Thanks!


Commit message:

Correct Makefile's variable name
Contributed by David Galvez

Index: sys/xfs/ext2fs/EXT2DEFS
===================================================================
RCS file: /mint/freemint/sys/xfs/ext2fs/EXT2DEFS,v
retrieving revision 1.1
diff -u -8 -r1.1 EXT2DEFS
--- sys/xfs/ext2fs/EXT2DEFS	27 Feb 2015 16:48:06 -0000	1.1
+++ sys/xfs/ext2fs/EXT2DEFS	15 Dec 2015 15:50:54 -0000
@@ -2,58 +2,58 @@
 # debug flags
 #
 # -DDEV_DEBUG		include debugging information
 
 
 ifeq ($(ext2),deb)
 TARGET = ext2.xfs
 CPU = 020-60
-USBDEFS += -DDEV_DEBUG
+EXT2DEFS += -DDEV_DEBUG
 LDEXTRA = -nostdlib -Wl,--entry -Wl,_init
 endif
 
 ifeq ($(ext2),000)
 TARGET = ext2.xfs
 CPU = 000
-USBDEFS +=
+EXT2DEFS +=
 LDEXTRA = -nostdlib -Wl,--entry -Wl,_init
 endif
 
 ifeq ($(ext2),02060)
 TARGET = ext2.xfs
 CPU = 020-60
-USBDEFS +=
+EXT2DEFS +=
 LDEXTRA = -nostdlib -Wl,--entry -Wl,_init
 endif
 
 ifeq ($(ext2),030)
 TARGET = ext2.xfs
 CPU = 030
-USBDEFS +=
+EXT2DEFS +=
 LDEXTRA = -nostdlib -Wl,--entry -Wl,_init
 endif
 
 ifeq ($(ext2),040)
 TARGET = ext2.xfs
 CPU = 040
-USBDEFS +=
+EXT2DEFS +=
 LDEXTRA = -nostdlib -Wl,--entry -Wl,_init
 endif
 
 ifeq ($(ext2),060)
 TARGET = ext2.xfs
 CPU = 060
-USBDEFS +=
+EXT2DEFS +=
 LDEXTRA = -nostdlib -Wl,--entry -Wl,_init
 endif
 
 ifeq ($(ext2),col)
 TARGET = ext2.xfs
 CPU  = v4e
-USBDEFS += 
+EXT2DEFS += 
 LDEXTRA = -nostdlib -Wl,--entry -Wl,_init
 endif
 
 #
 # all default targets
 #
 ext2targets = 02060 030 040 060 deb 000 col