qcom: soc: pil-q6v5: Remove unnecessary check

Remove check for "qcom,pil-q6v55-lpass" compatible string
as it is no longer supported/valid.

Change-Id: Ic6c6e0b71f53f368bbc81ccd6507d63102f171fc
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>