Fix depmod to work with not-running kernels

depmod -a requires the directory /lib/modules/<currently-running-kernel>/
to exist. If it doesn't, depmod fails to create the temp files. Fix this.

Signed-off-by: Joerg Mayer <jmayer@loplof.de>

Author: jmltp@loplof.de

Makefile

@@ -77,7 +77,7 @@ ifeq ($(HDAPS),1)
 	rm -f $(MOD_DIR)/extra/hdaps.ko
 endif
 	$(MAKE) -C $(KBUILD) M=$(PWD) O=$(KBUILD) modules_install
-	depmod -a
+	depmod $(KVER)
 
 
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