amdgpu: sync up pitcairn firmware with 18.20 release

From internal commit:
4e9bb623d83a96a783fd92ad1a4d9b05a3284d7c

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>
diff --git a/WHENCE b/WHENCE
index d358629..f7ca837 100644
--- a/WHENCE
+++ b/WHENCE
@@ -1928,6 +1928,13 @@
 File: amdgpu/tahiti_pfp.bin
 File: amdgpu/tahiti_rlc.bin
 File: amdgpu/tahiti_smc.bin
+File: amdgpu/pitcairn_ce.bin
+File: amdgpu/pitcairn_k_smc.bin
+File: amdgpu/pitcairn_mc.bin
+File: amdgpu/pitcairn_me.bin
+File: amdgpu/pitcairn_pfp.bin
+File: amdgpu/pitcairn_rlc.bin
+File: amdgpu/pitcairn_smc.bin
 File: amdgpu/hainan_ce.bin
 File: amdgpu/hainan_k_smc.bin
 File: amdgpu/hainan_mc.bin
diff --git a/amdgpu/pitcairn_ce.bin b/amdgpu/pitcairn_ce.bin
new file mode 100644
index 0000000..c2d805e
--- /dev/null
+++ b/amdgpu/pitcairn_ce.bin
Binary files differ
diff --git a/amdgpu/pitcairn_k_smc.bin b/amdgpu/pitcairn_k_smc.bin
new file mode 100644
index 0000000..7c43550
--- /dev/null
+++ b/amdgpu/pitcairn_k_smc.bin
Binary files differ
diff --git a/amdgpu/pitcairn_mc.bin b/amdgpu/pitcairn_mc.bin
new file mode 100644
index 0000000..269e788
--- /dev/null
+++ b/amdgpu/pitcairn_mc.bin
Binary files differ
diff --git a/amdgpu/pitcairn_me.bin b/amdgpu/pitcairn_me.bin
new file mode 100644
index 0000000..e4accbf
--- /dev/null
+++ b/amdgpu/pitcairn_me.bin
Binary files differ
diff --git a/amdgpu/pitcairn_pfp.bin b/amdgpu/pitcairn_pfp.bin
new file mode 100644
index 0000000..c5c4a58
--- /dev/null
+++ b/amdgpu/pitcairn_pfp.bin
Binary files differ
diff --git a/amdgpu/pitcairn_rlc.bin b/amdgpu/pitcairn_rlc.bin
new file mode 100644
index 0000000..6f19550
--- /dev/null
+++ b/amdgpu/pitcairn_rlc.bin
Binary files differ
diff --git a/amdgpu/pitcairn_smc.bin b/amdgpu/pitcairn_smc.bin
new file mode 100644
index 0000000..e257551
--- /dev/null
+++ b/amdgpu/pitcairn_smc.bin
Binary files differ