S390: Add PCI_MIO and SIE HWCAPs

Both new HWCAPs were introduced in these kernel commits:
- 7e8403ecaf884f307b627f3c371475913dd29292
  "s390: add HWCAP_S390_PCI_MIO to ELF hwcaps"
- 7e82523f2583e9813e4109df3656707162541297
  "s390/hwcaps: make sie capability regular hwcap"

Also note that the kernel commit 511ad531afd4090625def4d9aba1f5227bd44b8e
"s390/hwcaps: shorten HWCAP defines" has shortened the prefix of the macros
from "HWCAP_S390_" to "HWCAP_".  For compatibility reasons, we do not
change the prefix in public glibc header file.

(cherry picked from commit f2e06656d0)

sysdeps/s390/dl-procinfo.c

@@ -46,13 +46,13 @@
 #if !defined PROCINFO_DECL && defined SHARED
   ._dl_s390_cap_flags
 #else
-PROCINFO_CLASS const char _dl_s390_cap_flags[21][9]
+PROCINFO_CLASS const char _dl_s390_cap_flags[23][9]
 #endif
 #ifndef PROCINFO_DECL
 = {
      "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp", "edat", "etf3eh",
      "highgprs", "te", "vx", "vxd", "vxe", "gs", "vxe2", "vxp", "sort", "dflt",
-     "vxp2", "nnpa"
+     "vxp2", "nnpa", "pcimio", "sie"
   }
 #endif
 #if !defined SHARED || defined PROCINFO_DECL

sysdeps/s390/dl-procinfo.h

@@ -21,7 +21,7 @@
 #define _DL_PROCINFO_H	1
 #include <ldsodefs.h>
 
-#define _DL_HWCAP_COUNT 21
+#define _DL_HWCAP_COUNT 23
 
 #define _DL_PLATFORMS_COUNT	10
 
@@ -63,6 +63,8 @@ enum
   HWCAP_S390_DFLT = 1 << 18,
   HWCAP_S390_VXRS_PDE2 = 1 << 19,
   HWCAP_S390_NNPA = 1 << 20,
+  HWCAP_S390_PCI_MIO = 1 << 21,
+  HWCAP_S390_SIE = 1 << 22,
 };
 
 #define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \

sysdeps/unix/sysv/linux/s390/bits/hwcap.h

@@ -22,6 +22,11 @@
 
 /*
  * The following must match the kernels asm/elf.h.
+ * Note: The kernel commit 511ad531afd4090625def4d9aba1f5227bd44b8e
+ * "s390/hwcaps: shorten HWCAP defines" has shortened the prefix of the macros
+ * from "HWCAP_S390_" to "HWCAP_".  For compatibility reasons, we do not
+ * change the prefix in public glibc header file.
+ *
  * Note that these are *not* the same as the STORE FACILITY LIST bits.
  */
 #define HWCAP_S390_ESAN3        1
@@ -48,3 +53,5 @@
 #define HWCAP_S390_DFLT         262144
 #define HWCAP_S390_VXRS_PDE2    524288
 #define HWCAP_S390_NNPA         1048576
+#define HWCAP_S390_PCI_MIO      2097152
+#define HWCAP_S390_SIE          4194304