libs4c converted to symlink

This is necessary for merging with sysless-lpc21xx.

diff --git a/libs4c b/libs4c
new file mode 120000 (symlink)
index 0000000..25722fc
--- /dev/null
+++ b/libs4c
@@ -0,0 +1 @@
+common/libs4c
\ No newline at end of file

diff --git a/libs4c/Makefile b/libs4c/Makefile
deleted file mode 120000 (symlink)
index d1861e1..0000000
--- a/libs4c/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../common/libs4c/Makefile
\ No newline at end of file

diff --git a/libs4c/Makefile.omk b/libs4c/Makefile.omk
deleted file mode 120000 (symlink)
index 5c0b3cb..0000000
--- a/libs4c/Makefile.omk
+++ /dev/null
@@ -1 +0,0 @@
-../common/libs4c/Makefile.omk
\ No newline at end of file

diff --git a/libs4c/cmdproc b/libs4c/cmdproc
deleted file mode 120000 (symlink)
index 60b9c76..0000000
--- a/libs4c/cmdproc
+++ /dev/null
@@ -1 +0,0 @@
-../common/libs4c/cmdproc
\ No newline at end of file

diff --git a/libs4c/misc b/libs4c/misc
deleted file mode 120000 (symlink)
index 513075b..0000000
--- a/libs4c/misc
+++ /dev/null
@@ -1 +0,0 @@
-../common/libs4c/misc
\ No newline at end of file

diff --git a/libs4c/usb b/libs4c/usb
deleted file mode 120000 (symlink)
index 50e38a6..0000000
--- a/libs4c/usb
+++ /dev/null
@@ -1 +0,0 @@
-../common/libs4c/usb
\ No newline at end of file