Allow optional nested parenthesis in the kernel compiler version string.

This fixes parsing of the kernel version string in so that groups
3 and 4 can be shown in About phone.

Submitted on behalf of Patrick Auchter <patrick.auchter@motorola.com>
Signed-off-by: Jared Suttles <jared.suttles@motorola.com>

src/com/android/settings/DeviceInfoSettings.java

@@ -121,7 +121,7 @@ public class DeviceInfoSettings extends PreferenceActivity {
                 "\\w+\\s+" + /* ignore: version */
                 "([^\\s]+)\\s+" + /* group 1: 2.6.22-omap1 */
                 "\\(([^\\s@]+(?:@[^\\s.]+)?)[^)]*\\)\\s+" + /* group 2: (xxxxxx@xxxxx.constant) */
-                "\\([^)]+\\)\\s+" + /* ignore: (gcc ..) */
+                "\\(.*?(?:\\(.*?\\)).*?\\)\\s+" + /* ignore: (gcc ..) */
                 "([^\\s]+)\\s+" + /* group 3: #26 */
                 "(?:PREEMPT\\s+)?" + /* ignore: PREEMPT (optional) */
                 "(.+)"; /* group 4: date */