ld-version: Drop the 4th and 5th version components

... making upstream development binutils snapshots work as expected,
e.g.:

$ mips64el-linux-ld --version
GNU ld (GNU Binutils) 2.20.1.20100303
[...]
$

Signed-off-by: Maciej W. Rozycki <[e-mail]>
Acked-by: Michal Marek <[e-mail]>
Cc: Michael S. Tsirkin <[e-mail]>
Cc: James Hogan <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Cc: [e-mail]
Patchwork: https://patchwork.linux-mips.org/patch/12537/
Signed-off-by: Ralf Baechle <[e-mail]>

scripts/ld-version.sh

···
 	gsub(".*version ", "");
 	gsub("-.*", "");
 	split($1,a, ".");
-	print a[1]*100000000 + a[2]*1000000 + a[3]*10000 + a[4]*100 + a[5];
+	print a[1]*100000000 + a[2]*1000000 + a[3]*10000;
 	exit
 	}