2020-3-26 update

New feature and improvement
*  Enable Immediate and Mailbox mode for direct display

Issue fix
* SPM issues

default.xml

@@ -9,12 +9,12 @@
            sync-j="8"
            sync-c="true" />
 
-  <project path="drivers/xgl" name="xgl" revision="80e5a4b11ad2058097e77746772ddc9ab2118e07"/>
-  <project path="drivers/pal" name="pal" revision="e642f608a62887d40d1f25509d2951a4a3576985"/>
-  <project path="drivers/llpc" name="llpc" revision="fc21c950b629753f9cc7d0941937c57262ceadcf"/>
-  <project path="drivers/spvgen" name="spvgen" revision="843c6b95f731589bf497fad29dadf7fda4934aad"/>
+  <project path="drivers/xgl" name="xgl" revision="2db4177e78133c868e2c6b4dcc46aeb2f512163a"/>
+  <project path="drivers/pal" name="pal" revision="bb7398b1c7509a30ba4f7d947b5ad5549a4d58db"/>
+  <project path="drivers/llpc" name="llpc" revision="7686a2ddba683f7a361460f3806b0d45e615ca76"/>
+  <project path="drivers/spvgen" name="spvgen" revision="d16fddddf22a1eb3a3f4ce05cbcb95a337f708b1"/>
   <project path="drivers/AMDVLK" name="AMDVLK" revision="master"/>
-  <project path="drivers/llvm-project" name="llvm-project" revision="e404e4b2db325184dbc2d14f31ef891d938f3835"/>
+  <project path="drivers/llvm-project" name="llvm-project" revision="5c958c70bc6366298296dc778e903f65528c3b0f"/>
   <project path="drivers/third_party/metrohash" name="MetroHash" revision="2b6fee002db6cc92345b02aeee963ebaaf4c0e2f"/>
   <project path="drivers/third_party/cwpack" name="CWPack" revision="b601c88aeca7a7b08becb3d32709de383c8ee428"/>