ld: implement -ztype and rework option parsing

@@ -159,10 +159,11 @@
                                                 /*      that produced object */
 #define DT_SUNW_CAPCHAINENT     0x6000001d      /* capabilities chain entry */
 #define DT_SUNW_CAPCHAINSZ      0x6000001f      /* capabilities chain size */
 /* 0x60000021 would be DT_SUNW_PARENT */
 #define DT_SUNW_ASLR            0x60000023      /* executable ASLR desire */
+#define DT_SUNW_KMOD            0x60000027      /* object is a kernel module */
 
 /*
  * DT_* encoding rules do not apply between DT_HIOS and DT_LOPROC
  */
 #define DT_HIOS                 0x6ffff000