clk: qcom: Add support for root clock-name as core_root_clk

In the cases where qcom,enable-root-clk property is defined, the other
clocks which would need a clock manipulation of clk_reset/clk_set_flags
would result into clock warnings.

To avoid such issues, the clock-names property for root clock should
indicate as core_root_clk. The clk_reset and clk_set_flags would be allowed
only clock other than the root clock.

GCC_OXILI_GFX3D_CBCR  register 13th bit must be set to ON to avoid power
collapse of UCACHE memory peripheral.

Change-Id: Ic09c9f9b5c313993f7f5e2c4ae8e1ea0f55f40f2
Signed-off-by: Taniya Das <tdas@codeaurora.org>