soft-off: Add pldm host soft off requester application.

Since the phosphor-softpoweroff is too tied up to IPMI, we need to
implement a new pldm host soft off requester application in parallel in
the pldm repo.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I47534bb25c976a0004a1cd9f07d7590e605ce243
Signed-off-by: Chicago Duan <duanzhijia01@inspur.com>
diff --git a/meson_options.txt b/meson_options.txt
index aaacf38..ae236ad 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -6,3 +6,4 @@
 
 option('libpldm-only', type: 'feature', description: 'Only build libpldm', value: 'disabled')
 option('oem-ibm-dma-maxsize', type: 'integer', description: 'OEM-IBM: max DMA size', value: 16773120) #16MB - 4K
+option('softoff', type: 'feature', description: 'Build soft power off application', value: 'enabled')