Removed unecessary inet_*.c files, added license

Author: CarlWachter

newlib/libc/sys/hermit/Makefile.am

@@ -4,7 +4,7 @@ AM_CCASFLAGS = $(INCLUDES)
 
 noinst_LIBRARIES = lib.a
 
-lib_a_SOURCES = chown.c clock_getres.c clock_gettime.c clock_nanosleep.c clock_settime.c close.c environ.c errno.c execve.c _exit.c fork.c fstat.c getpagesize.c getpid.c gettod.c isatty.c kill.c link.c lseek.c nanosleep.c open.c read.c readlink.c sbrk.c sched.c setitimer.c signal.c stat.c symlink.c sysconf.c times.c unlink.c wait.c write.c context.S makecontext.c inet_addr.c inet_ntoa.c inet_ntop.c inet_pton.c
+lib_a_SOURCES = chown.c clock_getres.c clock_gettime.c clock_nanosleep.c clock_settime.c close.c environ.c errno.c execve.c _exit.c fork.c fstat.c getpagesize.c getpid.c gettod.c isatty.c kill.c link.c lseek.c nanosleep.c open.c read.c readlink.c sbrk.c sched.c setitimer.c signal.c stat.c symlink.c sysconf.c times.c unlink.c wait.c write.c context.S makecontext.c inet_ntoa.c
 lib_a_CCASFLAGS = $(AM_CCASFLAGS)
 lib_a_CFLAGS = $(AM_CFLAGS)
 

newlib/libc/sys/hermit/inet_addr.c

@@ -17,6 +17,9 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/* From https://sourceware.org/git/?p=glibc.git;a=blob;f=inet/inet_ntoa.c;h=341d8591c30b88d4415898d93ae0dcbd7bf4e3d6;hb=46b5e98ef6f1b9f4b53851f152ecb8209064b26c */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <arpa/inet.h>