.gitignore: move *-asn1.[ch] patterns to the top-level .gitignore

These are common patterns where source files are parsed by the
asn1_compiler.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Author: masahir0y

.gitignore

@@ -11,6 +11,7 @@
 #
 .*
 *.a
+*-asn1.[ch]
 *.bin
 *.bz2
 *.c.[012]*.*
@@ -130,7 +131,3 @@ all.config
 
 # Kdevelop4
 *.kdev4
-
-#Automatically generated by ASN.1 compiler
-net/ipv4/netfilter/nf_nat_snmp_basic-asn1.c
-net/ipv4/netfilter/nf_nat_snmp_basic-asn1.h