Fix some strip test fails on nds32 and pru

[Alan Modra]

Fixes these fails:
nds32le-linux  +FAIL: binutils-all/strip-14
nds32le-linux  +FAIL: binutils-all/strip-15
pru-elf  +FAIL: binutils-all/strip-14
pru-elf  +FAIL: binutils-all/strip-15

strip-13 fails on nds32 due to an assertion failure and out of bounds
access to nds32_elf_howto_table.  I'm leaving that fix to the port
maintainers.

	* testsuite/binutils-all/objcopy.exp (strip-14, strip-15): Choose
	reloc=11 for pru and reloc=50 for nds32.
	* testsuite/binutils-all/strip-15.d: Accept 0xb reloc number.

diff --git a/binutils/testsuite/binutils-all/objcopy.exp b/binutils/testsuite/binutils-all/objcopy.exp
index 366a4a3..b308fd7 100644
--- a/binutils/testsuite/binutils-all/objcopy.exp
+++ b/binutils/testsuite/binutils-all/objcopy.exp
@@ -1113,8 +1113,11 @@ if [is_elf_format] {
 	set reloc 259
     } elseif { [istarget "ia64*-*"] \
 	       || [istarget "m32r*-*"] \
+	       || [istarget "nds32*-*"] \
 	       || [istarget "v850*-*"] } {
 	set reloc 50
+    } elseif { [istarget "pru-*"] } {
+	set reloc 11
     } else {
 	set reloc 1
     }
diff --git a/binutils/testsuite/binutils-all/strip-15.d b/binutils/testsuite/binutils-all/strip-15.d
index 03d7d1a..f649287 100644
--- a/binutils/testsuite/binutils-all/strip-15.d
+++ b/binutils/testsuite/binutils-all/strip-15.d
@@ -4,5 +4,5 @@
 
 Relocation section '\.rela?\.text' at offset .* contains 2 entries:
  *Offset * Info * Type * Sym\. *Value * Sym\. *Name(?: * \+ * Addend)?
-0+00 * 0+0(?:1|32|103) * R_[^ ]* *(?: * 55aa)?
+0+00 * 0+0(?:1|b|32|103) * R_[^ ]* *(?: * 55aa)?
 #pass

-- 
Alan Modra
Australia Development Lab, IBM