discover: support 3 options to run APR when BMC is rebooted

As defined in the PDIs [1], the RebootCause can be
Power-On-Reset, Watchdog, Pinhole, Software or Unknown. When BMC is
rebooted due to Power-On-Reset, BMC always runs APR feature. But other
RebootCause values, we don't have a clear specification to indicate the
behavior of BMC in those cases. This commit adds 3 more options to
support running APR when BMC rebooted or not.
  - 'run-apr-on-pinhole-reset': Run APR when BMC is rebooted due to
    pinhole action.
  - 'run-apr-on-watchdog-reset': Run APR when BMC is rebooted due to
    watchdog.
  - 'run-apr-on-software-reset': Run APR when BMC is rebooted due to
    software.

[1] https://github.com/openbmc/phosphor-dbus-interfaces/blob/master/yaml/xyz/openbmc_project/State/BMC.interface.yaml#L72

Tested:

Test case 1:
   1. Enable run-apr-on-watchdog-reset option
   2. Trigger watchdog to reboot BMC
   3. BMC runs APR when booting done
   4. Disable run-apr-on-watchdog-reset option
   5. Trigger watchdog to reboot BMC
   6. BMC does not run APR when booting done

Test case 2:
   1. Enable run-apr-on-software-reset option
   2. Call "reboot" command to reboot BMC
   3. BMC runs APR when booting done
   4. Disable run-apr-on-software-reset option
   5. Trigger watchdog to reboot BMC
   6. BMC does not run APR when booting done

Change-Id: I255f52a4008ae1dbf3db69e33471f9d23e0552a0
Signed-off-by: Thang Tran <thuutran@amperecomputing.com>
diff --git a/meson.options b/meson.options
index f0221ea..f7a3efc 100644
--- a/meson.options
+++ b/meson.options
@@ -160,3 +160,24 @@
     value: 'enabled',
     description: 'Install the obmcutil script',
 )
+
+option(
+    'run-apr-on-pinhole-reset',
+    type: 'boolean',
+    value: true,
+    description: 'run APR when BMC has been rebooted due to pinhole action',
+)
+
+option(
+    'run-apr-on-watchdog-reset',
+    type: 'boolean',
+    value: true,
+    description: 'run APR when BMC has been rebooted due to watchdog',
+)
+
+option(
+    'run-apr-on-software-reset',
+    type: 'boolean',
+    value: true,
+    description: 'run APR when BMC has been rebooted due to software request',
+)