nvidia_linux-4.8_rc2: Put modules in correct directory

Adapt the script to take the extra version into account, and put the
modules into the correct directory.

*   before: /usr/share/nvidia/kernel/4.8.0.mx64.95
*   after: /usr/share/nvidia/kernel/4.8.0-rc2.mx64.95

Here are some examples used for testing.

```
$ test=$(beeversion --format "%V.mx64.%r" linux-4.8_rc2-95.x86_64); if [[ $test =~ ^([0-9]+\.[0-9]+)_?(.*)(\.mx64.*) ]]; then echo "${BASH_REMATCH[1]}.0-${BASH_REMATCH[2]}${BASH_REMATCH[3]}"; fi
4.8.0-rc2.mx64.95
test=$(beeversion --format "%V.mx64.%r" linux-4.8-95.x86_64); if [[ $test =~ ^([0-9]+\.[0-9]+)_?(.*)(\.mx64.*) ]]; then echo "${BASH_REMATCH[1]}.0-${BASH_REMATCH[2]}${BASH_REMATCH[3]}"; fi
4.8.0-.mx64.95
$ test=$(beeversion --format "%V.mx64.%r" linux-4.8_rc2-95.x86_64); if [[ $test =~ ^([0-9]+\.[0-9]+)(_?.*)(\.mx64.*) ]]; then echo "${BASH_REMATCH[1]}.0${BASH_REMATCH[2]}${BASH_REMATCH[3]}"; fi
4.8.0_rc2.mx64.95
$ test=$(beeversion --format "%V.mx64.%r" linux-4.8-95.x86_64); if [[ $test =~ ^([0-9]+\.[0-9]+)(_?.*)(\.mx64.*) ]]; then echo "${BASH_REMATCH[1]}.0${BASH_REMATCH[2]}${BASH_REMATCH[3]}"; fi
4.8.0.mx64.95
```

As you can see, it currently doesn’t work, when the package has no extra
version.

nvidia_linux-4.8_rc2-95-367.18-0.bee → nvidia_linux-4.8_rc2-95-367.18-1.bee

@@ -39,11 +39,12 @@ PATCHURL+=('/src/mariux/patches/0003-kernel-Adapt-source-for-Linux-4.8.patch')
 
 LINUXPKG=${PKGEXTRANAME}.${ARCH}
 
-LINUXKLOCALVER=$(beeversion --format "%v.mx64.%r" "${LINUXPKG}")
+LINUXKLOCALVER=$(beeversion --format "%V.mx64.%r" "${LINUXPKG}")
 
 # '4.4.mx64.75' to '4.4.0.mx64.75'
-if [[ $LINUXKLOCALVER =~ ^([0-9]+\.[0-9]+)(\.mx64.*) ]]; then
-    LINUXKLOCALVER="${BASH_REMATCH[1]}.0${BASH_REMATCH[2]}"
+# '4.8_rc2.mx64.95' to '4.8.0-rc2.mx64.95'
+if [[ $LINUXKLOCALVER =~ ^([0-9]+\.[0-9]+)_?(.*)(\.mx64.*) ]]; then
+    LINUXKLOCALVER="${BASH_REMATCH[1]}.0-${BASH_REMATCH[2]}${BASH_REMATCH[3]}"
 fi