Rename lib_generic/ to lib/

Now that the other architecture-specific lib directories have been
moved out of the top-level directory there's not much reason to have the
'_generic' suffix on the common lib directory.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

board/cm-bf527/config.mk

diff --git a/board/cm-bf527/config.mk b/board/cm-bf527/config.mk
index fb93531..3f9d41f 100644
--- a/board/cm-bf527/config.mk
+++ b/board/cm-bf527/config.mk
@@ -26,8 +26,8 @@
 # This is not actually used for Blackfin boards so do not change it
 #TEXT_BASE = do-not-use-me
 
-CFLAGS_lib_generic += -O2
-CFLAGS_lib_generic/lzma += -O2
+CFLAGS_lib += -O2
+CFLAGS_lib/lzma += -O2
 
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))