meta-quanta: s6q: enable the boot type selector

Enable the BIOS boot type. Add 'boot_type' option for phosphor-settings-manager to support both EFI and Legacy boot.

Tested:
~# ipmitool raw 0x00 0x09 0x05 0x00 0x00
01 05 60 00 00 00 00
~# ipmitool chassis bootparam get 5
Boot parameter version: 1
Boot parameter 5 is valid/unlocked
Boot parameter data: 6000000000
Boot Flags :
    BIOS EFI boot

~# ipmitool raw 0x00 0x08 0x05 0x80 0x00 0x00 0x00 0x00

~# ipmitool raw 0x00 0x09 0x05 0x00 0x00
01 05 80 00 00 00 00
~# ipmitool chassis bootparam get 5
Boot parameter version: 1
Boot parameter 5 is valid/unlocked
Boot parameter data: 8000000000
Boot Flags :
    BIOS PC Compatible (legacy) boot

Signed-off-by: Joseph Fu <joseph.fu@quantatw.com>
Change-Id: I3ff030dd65fad1a2492c20a6622c6dce68832b45
diff --git a/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager_%.bbappend b/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager_%.bbappend
index 615702f..abc9f5f 100644
--- a/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager_%.bbappend
+++ b/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager_%.bbappend
@@ -3,3 +3,5 @@
 SRC_URI:append:s6q = " file://chassis-capabilities.override.yml \
                        file://power-policy-set-default.override.yml \
                      "
+
+PACKAGECONFIG:append:s6q = " boot_type"