Add a linker branch optimization for the MSP430.

	PR 21824
	* elf32-msp430.c (msp430_elf_relax_section): Allow conversion of
	16-bit absolute branches into 10-bit pc-relative branches on the
	MSP430 as well as the MSP430X.

bfd/ChangeLog

@@ -1,3 +1,10 @@
+2017-07-25  Benjamin Green  <[email protected]>
+
+	PR 21824
+	* elf32-msp430.c (msp430_elf_relax_section): Allow conversion of
+	16-bit absolute branches into 10-bit pc-relative branches on the
+	MSP430 as well as the MSP430X.
+
 2017-07-25  Alan Modra  <[email protected]>
 
 	* elf64-ppc.c (struct map_stub): Add tls_get_addr_opt_bctrl.

bfd/elf32-msp430.c

@@ -2227,8 +2227,8 @@ msp430_elf_relax_section (bfd * abfd, asection * sec,
 
 	/* Try to turn a 16-bit absolute branch into a 10-bit pc-relative
 	   branch.  */
-	if (uses_msp430x_relocs (abfd)
-	    && ELF32_R_TYPE (irel->r_info) == R_MSP430X_ABS16)
+	if (ELF32_R_TYPE (irel->r_info) == R_MSP430X_ABS16
+	    || ELF32_R_TYPE (irel->r_info) == R_MSP430_16)
 	  {
 	    bfd_vma value = symval;