target/ppc: Fix xxbrq, xxbrw

Fix a typo in xxbrq and xxbrw where we put both results into the lower
doubleword.

Fixes: 8b3b2d7 ("introduce get_cpu_vsr{l,h}() and set_cpu_vsr{l,h}() helpers for VSR register access")
Signed-off-by: Anton Blanchard <anton@ozlabs.org>
Message-Id: <20190507004811.29968-3-anton@ozlabs.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
(upstream commit d47a751)
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

target/ppc/translate/vsx-impl.inc.c

@@ -1192,7 +1192,7 @@ static void gen_xxbrq(DisasContext *ctx)
     tcg_gen_bswap64_i64(xtl, xbh);
     set_cpu_vsrl(xT(ctx->opcode), xtl);
     tcg_gen_mov_i64(xth, t0);
-    set_cpu_vsrl(xT(ctx->opcode), xth);
+    set_cpu_vsrh(xT(ctx->opcode), xth);
 
     tcg_temp_free_i64(t0);
     tcg_temp_free_i64(xth);
@@ -1220,7 +1220,7 @@ static void gen_xxbrw(DisasContext *ctx)
     get_cpu_vsrl(xbl, xB(ctx->opcode));
 
     gen_bswap32x4(xth, xtl, xbh, xbl);
-    set_cpu_vsrl(xT(ctx->opcode), xth);
+    set_cpu_vsrh(xT(ctx->opcode), xth);
     set_cpu_vsrl(xT(ctx->opcode), xtl);
 
     tcg_temp_free_i64(xth);