target-sparc: fix --enable-debug build for 64 bit host

b551ec04ca45d1925417dd2ec7c1b7f115c84f1d fixed
the compilation for 32 bit hosts, but introduced
a new error for 64 bit hosts:

tcg_temp_new_ptr needs a matching tcg_temp_free_ptr.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index b7d2a32..1164feb 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -1680,7 +1680,7 @@
         TCGv_ptr r_tl_tmp = tcg_temp_new_ptr();
         tcg_gen_ext_i32_ptr(r_tl_tmp, r_tl);
         tcg_gen_add_ptr(r_tsptr, r_tsptr, r_tl_tmp);
-        tcg_temp_free_i32(r_tl_tmp);
+        tcg_temp_free_ptr(r_tl_tmp);
     }
 
     tcg_temp_free_i32(r_tl);