xtea: replace unsigned long with uint32_t, x86_64

In xtea, replace unsigned long with uint32_t, because unsigned long is
64-bit wide on x86_64, and we need a 32-bit wide number here.
camellia: replace unsigned long with uint32_t, x86_64

In camellia, replace unsigned long with uint32_t, because unsigned long is
64-bit wide on x86_64, and we need a 32-bit wide number here.
base64: replace unsigned long with uint32_t
net: replace unsigned long with uint32_t
hash: replace unsigned long with uint32_t
crypto: replace unsigned long with uint32_t
padlock: replace unsigned long with uint32_t
ssl: replace unsigned long with uint32_t