ARM: dts: msm: Fix bus bandwidth voting for SDHC_2 slot on 8084

Add bus bandwidth voting parameters for SDHC_2 and SDCC_1 slot,
otherwise bus hang/timeouts may be observed while accessing the
controller registers and the bus is clock gated.

CRs-Fixed: 580000
Change-Id: I2fbf2b7344081a8d31d8d115c230a31f94df84ab
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>