Control the UART AHB clock regardless of whether a GSBI resource is present, as the AHB clock is needed to access the UARTDM core registers in addition to the GSBI registers. Change-Id: Idca5ac07c133b67ac7c02ca3304a46794659e010 Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>