Make a few more asm modules conform: last argument is output file

Fixes #5310
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5315)

crypto/rc4/asm/rc4-c64xplus.pl

@@ -186,5 +186,7 @@ rc4_options:
 	.align	4
 ___
 
+$output=pop;
+open STDOUT,">$output";
 print $code;
 close STDOUT;

crypto/sha/asm/keccak1600-armv4.pl

@@ -1573,6 +1573,9 @@ ___
     }
 }
 
+$output=pop;
+open STDOUT,">$output";
+
 foreach (split($/,$code)) {
 	s/\`([^\`]*)\`/eval $1/ge;
 

crypto/sha/asm/keccak1600-avx2.pl

@@ -476,5 +476,7 @@ iotas:
 .asciz	"Keccak-1600 absorb and squeeze for AVX2, CRYPTOGAMS by <appro\@openssl.org>"
 ___
 
+$output=pop;
+open STDOUT,">$output";
 print $code;
 close STDOUT;

crypto/sha/asm/keccak1600-avx512.pl

@@ -545,5 +545,7 @@ iotas:
 .asciz	"Keccak-1600 absorb and squeeze for AVX-512F, CRYPTOGAMS by <appro\@openssl.org>"
 ___
 
+$output=pop;
+open STDOUT,">$output";
 print $code;
 close STDOUT;

crypto/sha/asm/keccak1600-avx512vl.pl

@@ -386,5 +386,7 @@ iotas:
 .asciz	"Keccak-1600 absorb and squeeze for AVX512VL, CRYPTOGAMS by <appro\@openssl.org>"
 ___
 
+$output=pop;
+open STDOUT,">$output";
 print $code;
 close STDOUT;

crypto/sha/asm/keccak1600-c64x.pl

@@ -879,4 +879,7 @@ iotas:
 	.align	4
 ___
 
+$output=pop;
+open STDOUT,">$output";
 print $code;
+close STDOUT;