add powerpc build support for openssl lib

Author: arowser

depends/packages/openssl.mk

@@ -17,6 +17,7 @@ $(package)_config_opts_arm_linux=linux-generic32
 $(package)_config_opts_aarch64_linux=linux-generic64
 $(package)_config_opts_mipsel_linux=linux-generic32
 $(package)_config_opts_mips_linux=linux-generic32
+$(package)_config_opts_powerpc_linux=linux-generic32
 $(package)_config_opts_x86_64_darwin=darwin64-x86_64-cc
 $(package)_config_opts_x86_64_mingw32=mingw64
 $(package)_config_opts_i686_mingw32=mingw