[U-Boot] [PATCH] arm: add __aeabi_unwind_cpp_pr1() function to avoid linker complaints

[Wolfgang Grandegger <wg@grandegger.com>]

With the ELDK 5.1 (beta) "armv7a" toolchain I'm get the following
build failure:

  $ ./MAKEALL mx51evk
  ...
  /opt/eldk-5.1/armv7a/sysroots/arm-linux-gnueabi/usr/lib/arm-linux-
  gnueabi/4.6.1/libgcc.a(bpabi.o):(.ARM.exidx+0x0): undefined
  reference to `__aeabi_unwind_cpp_pr1'
  make: *** [u-boot] Error 1

This patch fixes the issue similar to commit
d442b6e7ad6a86e2fd0e6297291fe8872ff26fc6 but I don't know if it's
general enough or if it does harm when using other toolchains.

Signed-off-by: Wolfgang Grandegger <wg@denx.de>
---
 arch/arm/lib/eabi_compat.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/arm/lib/eabi_compat.c b/arch/arm/lib/eabi_compat.c
index eb3e26d..2207c88 100644
--- a/arch/arm/lib/eabi_compat.c
+++ b/arch/arm/lib/eabi_compat.c
@@ -21,3 +21,8 @@ int raise (int signum)
 void __aeabi_unwind_cpp_pr0(void)
 {
 };
+
+void __aeabi_unwind_cpp_pr1(void)
+{
+};
+
-- 
1.7.6.4