clk: mediatek: mt7988: rename TOP_CK_NPU_SEL_CM_TOPS_SEL to TOP_NPU_SEL

Upstream kernel linux clock include use TOP_NPU_SEL instead of
TOP_CK_NPU_SEL_CM_TOPS_SEL.
Rename this clock to the upstream kernel in preparation for support of
OF_UPSTREAM.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
diff --git a/drivers/clk/mediatek/clk-mt7988.c b/drivers/clk/mediatek/clk-mt7988.c
index e2324f4..1ce8c4d 100644
--- a/drivers/clk/mediatek/clk-mt7988.c
+++ b/drivers/clk/mediatek/clk-mt7988.c
@@ -420,7 +420,7 @@
 		0x110, 0x114, 0x118, 24, 2, 31, 0x1c8, 9),
 	TOP_MUX(CK_TOP_ETH_MII_SEL, "eth_mii_sel", eth_mii_parents, 0x120,
 		0x124, 0x128, 0, 1, 7, 0x1c8, 10),
-	TOP_MUX(CK_TOP_CK_NPU_SEL_CM_TOPS_SEL, "ck_npu_sel_cm_tops_sel",
+	TOP_MUX(CK_TOP_NPU_SEL, "ck_npu_sel",
 		netsys_2x_parents, 0x120, 0x124, 0x128, 8, 2, 15, 0x1c8, 11),
 };