Revert "XMM626x: Partially downgrade RIL to V8"

This reverts commit aae789c635e17be794649fb363223ff874ba4b44.
Revert "xmm6262: ril.cpp: correctly define MAX_RIL_SOL"

This reverts commit f7569cd9f635fdf7648b343850f80f0deeda00ff.
xmm626x: ril.cpp: correctly define MAX_RIL_SOL