ARM: dts: msm: Remove active-only flag from sdhc node

SDHC does not need to configure this flag because at least
one CPU is active/powered-on when our bandwidth request is
applied.

Change-Id: I7e5e9af4baaeefbecc8a8ef9617962dc3d11524d
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>