Yocto 2.3

Move OpenBMC to Yocto 2.3(pyro).

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I50744030e771f4850afc2a93a10d3507e76d36bc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Resolves: openbmc/openbmc#2461
diff --git a/import-layers/yocto-poky/meta/classes/sign_ipk.bbclass b/import-layers/yocto-poky/meta/classes/sign_ipk.bbclass
index a481f6d..e5057b7 100644
--- a/import-layers/yocto-poky/meta/classes/sign_ipk.bbclass
+++ b/import-layers/yocto-poky/meta/classes/sign_ipk.bbclass
@@ -29,10 +29,10 @@
 python () {
     # Check configuration
     for var in ('IPK_GPG_NAME', 'IPK_GPG_PASSPHRASE_FILE'):
-        if not d.getVar(var, True):
+        if not d.getVar(var):
             raise_sanity_error("You need to define %s in the config" % var, d)
 
-    sigtype = d.getVar("IPK_GPG_SIGNATURE_TYPE", True)
+    sigtype = d.getVar("IPK_GPG_SIGNATURE_TYPE")
     if sigtype.upper() != "ASC" and sigtype.upper() != "BIN":
         raise_sanity_error("Bad value for IPK_GPG_SIGNATURE_TYPE (%s), use either ASC or BIN" % sigtype)
 }
@@ -42,11 +42,11 @@
 
     bb.debug(1, 'Signing ipk: %s' % ipk_to_sign)
 
-    signer = get_signer(d, d.getVar('IPK_GPG_BACKEND', True))
-    sig_type = d.getVar('IPK_GPG_SIGNATURE_TYPE', True)
+    signer = get_signer(d, d.getVar('IPK_GPG_BACKEND'))
+    sig_type = d.getVar('IPK_GPG_SIGNATURE_TYPE')
     is_ascii_sig = (sig_type.upper() != "BIN")
 
     signer.detach_sign(ipk_to_sign,
-                       d.getVar('IPK_GPG_NAME', True),
-                       d.getVar('IPK_GPG_PASSPHRASE_FILE', True),
+                       d.getVar('IPK_GPG_NAME'),
+                       d.getVar('IPK_GPG_PASSPHRASE_FILE'),
                        armor=is_ascii_sig)