package/upmpdcli: disable for PowerPC CS toolchains

Those toolchains use gcc <= 4.5, which is too old as they are missing to
construct an empty std::shared_ptr with a nullptr (0) as an argument. This
is only introduced with gcc-4.6.

Fixes:
http://autobuild.buildroot.net/results/faf/faf1b071c0a5bd8395d79abf2e6a32169ad7f136
http://autobuild.buildroot.net/results/247/247b3f1ac3d3a9712e9410eef298fce8d885f92c
http://autobuild.buildroot.net/results/de6/de601c4d4dd7922895892d78d3a37902fb98c7be
http://autobuild.buildroot.net/results/a4d/a4d7bf9863c134f59d285616b9c1f78201bd1a3e

and many more.

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/upmpdcli/Config.in

@@ -7,6 +7,8 @@ config BR2_PACKAGE_UPMPDCLI
 	depends on !BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2014R1 # Too old gcc
 	depends on !BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2013R1 # Ditto
 	depends on !BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2 # Ditto
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103 # Ditto
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009 # Ditto
 	# libupnpp triggers the _gp link issue
 	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201305
 	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201405
@@ -21,6 +23,8 @@ comment "upmpdcli needs a toolchain w/ C++, threads"
 	depends on !BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2014R1 # Too old gcc
 	depends on !BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2013R1 # Ditto
 	depends on !BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_2012R2 # Ditto
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201103 # Ditto
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC201009 # Ditto
 	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201305
 	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201405
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS