Bump version to 10.1.1-RC0

This should've been done almost 2 months ago when we cut 10.1.0...

Change-Id: I628d688cddb6d5cb48f1fb97fb834664b47e2053
diff --git a/config/common.mk b/config/common.mk
index 00d3ebf..9eb86b1 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -194,7 +194,7 @@
 
 PRODUCT_VERSION_MAJOR = 10
 PRODUCT_VERSION_MINOR = 1
-PRODUCT_VERSION_MAINTENANCE = 0-RC0
+PRODUCT_VERSION_MAINTENANCE = 1-RC0
 
 # Set CM_BUILDTYPE
 ifdef CM_NIGHTLY