mmc: sdhci-of-arasan: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/387cab3a466038aa5d1fc34b8b6a7c4f693826ea.1605896060.git.gustavoars@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-of-arasan.c

@@ -624,6 +624,7 @@ static int sdhci_zynqmp_sdcardclk_set_phase(struct clk_hw *hw, int degrees)
 	case MMC_TIMING_MMC_HS200:
 		/* For 200MHz clock, 8 Taps are available */
 		tap_max = 8;
+		break;
 	default:
 		break;
 	}
@@ -692,6 +693,7 @@ static int sdhci_zynqmp_sampleclk_set_phase(struct clk_hw *hw, int degrees)
 	case MMC_TIMING_MMC_HS200:
 		/* For 200MHz clock, 30 Taps are available */
 		tap_max = 30;
+		break;
 	default:
 		break;
 	}
@@ -751,6 +753,7 @@ static int sdhci_versal_sdcardclk_set_phase(struct clk_hw *hw, int degrees)
 	case MMC_TIMING_MMC_HS200:
 		/* For 200MHz clock, 8 Taps are available */
 		tap_max = 8;
+		break;
 	default:
 		break;
 	}
@@ -817,6 +820,7 @@ static int sdhci_versal_sampleclk_set_phase(struct clk_hw *hw, int degrees)
 	case MMC_TIMING_MMC_HS200:
 		/* For 200MHz clock, 30 Taps are available */
 		tap_max = 30;
+		break;
 	default:
 		break;
 	}