dt-bindings: clock: ast2600: Expand comment on reset definitions

The current "not part of a gate" is a little ambiguous. Expand this a
little to clarify the reference to the paired clock + reset control.

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://lore.kernel.org/r/20230302005834.13171-7-jk@codeconstruct.com.au
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

include/dt-bindings/clock/ast2600-clock.h

@@ -87,7 +87,7 @@
 #define ASPEED_CLK_MAC4RCLK		70
 #define ASPEED_CLK_I3C			71
 
-/* Only list resets here that are not part of a gate */
+/* Only list resets here that are not part of a clock gate + reset pair */
 #define ASPEED_RESET_ADC		55
 #define ASPEED_RESET_JTAG_MASTER2	54
 #define ASPEED_RESET_I3C_DMA		39