We need to use the ARM EABI to pass vector registers properly (i.e. float2).

We need to use the ARM EABI to pass vector registers properly (i.e. float2).

Given the following function signature:
void rsDebug(const char *s, float2 f2);

Under the regular ARM ABI, the arguments would be passed as follows:
r0 <- s
r1 <- f2.x
r2 <- f2.y

Under the ARM EABI, the arguments would be passed as follows:
r0 <- s
r1 <- UNUSED due to alignment padding for vector operation
r2 <- f2.x
r3 <- f2.y

Change-Id: I2332c8555c00003ae900f299fa3aee1b3ccac439