libgcc: xtensa: fix build with -mtext-section-literals

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
 libgcc/config/xtensa/ieee754-df.S |    1 +
 libgcc/config/xtensa/ieee754-sf.S |    1 +
 2 files changed, 2 insertions(+)

--- a/libgcc/config/xtensa/ieee754-sf.S
+++ b/libgcc/config/xtensa/ieee754-sf.S
@@ -55,6 +55,7 @@
 
 #ifdef L_addsubsf3
 
+    .literal_position
 	/* Addition */
 __addsf3_aux:
 
--- a/libgcc/config/xtensa/ieee754-df.S
+++ b/libgcc/config/xtensa/ieee754-df.S
@@ -55,6 +55,7 @@
 
 #ifdef L_addsubdf3
 
+    .literal_position
 	/* Addition */
 __adddf3_aux: