Allow NSS to be built with NO_NSPR_10_SUPPORT.

nss/lib/softoken/softoken.h

Index: nss/lib/softoken/softoken.h
===================================================================
--- nss/lib/softoken/softoken.h	(revision 203524)
+++ nss/lib/softoken/softoken.h	(working copy)
@@ -137,11 +137,11 @@
 /*
 ** pepare an ECParam structure from DEREncoded params
  */
-extern SECStatus EC_FillParams(PRArenaPool *arena,
+extern SECStatus EC_FillParams(PLArenaPool *arena,
                                const SECItem *encodedParams, ECParams *params);
 extern SECStatus EC_DecodeParams(const SECItem *encodedParams, 
 				ECParams **ecparams);
-extern SECStatus EC_CopyParams(PRArenaPool *arena, ECParams *dstParams,
+extern SECStatus EC_CopyParams(PLArenaPool *arena, ECParams *dstParams,
               			const ECParams *srcParams);
 #endif
 
@@ -159,7 +159,7 @@
 ** NOTE: If arena is non-NULL, we re-allocate from there, otherwise
 ** we assume (and use) PR memory (re)allocation.
 */
-extern unsigned char * CBC_PadBuffer(PRArenaPool *arena, unsigned char *inbuf, 
+extern unsigned char * CBC_PadBuffer(PLArenaPool *arena, unsigned char *inbuf,
                                      unsigned int inlen, unsigned int *outlen,
 				     int blockSize);