Update runtime files

runtime/ftplugin/asm.vim

@@ -0,0 +1,11 @@
+" Vim filetype plugin file
+" Language:	asm
+" Maintainer:	Colin Caine <cmcaine at the common googlemail domain>
+" Last Changed: 23 May 2020
+
+if exists("b:did_ftplugin") | finish | endif
+
+setl comments=:;,s1:/*,mb:*,ex:*/,://
+setl commentstring=;%s
+
+let b:did_ftplugin = 1