eal/arm64: fix poly64/128 compilation with GCC < 4.9
eal/arm64: fix poly64/128 compilation with GCC < 4.9

Use built-in data types for unsupported poly64/128 types
for GCC version lower than 4.9.0

Fixes: 3c4b4024c225 ("arch/arm: add vcopyq_laneq_u32 for old gcc")
Cc: stable@dpdk.org

Signed-off-by: Herbert Guan <b2503dc9d402d7d35d87e005814cf8c5c902b4e9@arm.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk