tree 325008cf6d2fea2dfa15e4d49ae4d4d79fb1ff2b
parent 9e3e10c725360b9d07018cfcd5b7b6b7d325fae5
author Masahiro Yamada <yamada.masahiro@socionext.com> 1518106747 +0900
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1518229564 +0900

kconfig: add xrealloc() helper

We already have xmalloc(), xcalloc().  Add xrealloc() as well
to save tedious error handling.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>