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>
diff --git a/include/configs/bf537-pnav.h b/include/configs/bf537-pnav.h
index 6627a04..8038c40 100644
--- a/include/configs/bf537-pnav.h
+++ b/include/configs/bf537-pnav.h
@@ -116,7 +116,7 @@
 	cpu/blackfin/interrupt.o	(.text .text.*); \
 	cpu/blackfin/serial.o		(.text .text.*); \
 	common/dlmalloc.o		(.text .text.*); \
-	lib_generic/crc32.o		(.text .text.*); \
+	lib/crc32.o		(.text .text.*); \
 	. = DEFINED(env_offset) ? env_offset : .; \
 	common/env_embedded.o		(.text .text.*);
 #endif