doc: update sbi command example

The output of the sbi command has been changed since the last release of
the man-page. Update the example.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/doc/usage/cmd/sbi.rst b/doc/usage/cmd/sbi.rst
index 96d8861..713e0b9 100644
--- a/doc/usage/cmd/sbi.rst
+++ b/doc/usage/cmd/sbi.rst
@@ -21,27 +21,34 @@
 ::
 
     => sbi
-    SBI 0.2
-    OpenSBI
+    SBI 1.0
+    OpenSBI 1.1
+    Machine:
+      Vendor ID 0
+      Architecture ID 0
+      Implementation ID 0
     Extensions:
-      sbi_set_timer
-      sbi_console_putchar
-      sbi_console_getchar
-      sbi_clear_ipi
-      sbi_send_ipi
-      sbi_remote_fence_i
-      sbi_remote_sfence_vma
-      sbi_remote_sfence_vma_asid
-      sbi_shutdown
+      Set Timer
+      Console Putchar
+      Console Getchar
+      Clear IPI
+      Send IPI
+      Remote FENCE.I
+      Remote SFENCE.VMA
+      Remote SFENCE.VMA with ASID
+      System Shutdown
       SBI Base Functionality
       Timer Extension
       IPI Extension
       RFENCE Extension
       Hart State Management Extension
+      System Reset Extension
+      Performance Monitoring Unit Extension
 
 The first line indicates the version of the RISC-V SBI specification.
 The second line indicates the implementation.
-The further lines enumerate the implemented extensions.
+The Machine section shows the values of the machine information registers.
+The Extensions section enumerates the implemented SBI extensions.
 
 Configuration
 -------------