tools: rename source files

There's no point anymore in having "kmod-" prefix. This is a historical
thing when we started implementation of these tools.

Makefile.am

@@ -102,10 +102,10 @@ bin_PROGRAMS = tools/kmod
 noinst_SCRIPTS = tools/insmod tools/rmmod tools/lsmod \
 		 tools/modprobe tools/modinfo tools/depmod
 
-tools_kmod_SOURCES = tools/kmod.c tools/kmod.h tools/kmod-lsmod.c \
-		     tools/kmod-rmmod.c tools/kmod-insmod.c \
-		     tools/kmod-modinfo.c tools/kmod-modprobe.c \
-		     tools/kmod-depmod.c
+tools_kmod_SOURCES = tools/kmod.c tools/kmod.h tools/lsmod.c \
+		     tools/rmmod.c tools/insmod.c \
+		     tools/modinfo.c tools/modprobe.c \
+		     tools/depmod.c
 tools_kmod_CPPFLAGS = $(AM_CPPFLAGS) -DKMOD_BUNDLE_TOOL=1
 tools_kmod_CFLAGS = $(AM_CFLAGS)
 tools_kmod_LDADD = libkmod/libkmod-util.la \